# Salary Raise Percentage Calculator

" Enter the "Net Amount. What Is a Reasonable Pay Increase To Expect When Changing Jobs? In our professional experience recruiting specifically within the Legal Technology market, we have identified 3 key areas which firms and corporations in the eDiscovery and Litigation Support industry use for determining offers of employment and pay increases. The first question to ask yourself when finding the percent of change is: Is it an increase or a. In effect, you will be making one extra mortgage payment per year -- without hardly noticing the additional cash outflow. 6 percent effective for payments made for January 2020. The percentage calculator allows you to find out what the amount, the percentage, the percent amount, the percent increase or the percent decrease is, if you know any of the two. Enter your current pay rate and select the pay period. Percent decrease calculator online - fast & easy to use. Numbeo is the world’s largest database of user contributed data about cities and countries worldwide. 4 percent pay raise across the board, with an additional. However, if it's been a while, the percentage annual growth of your salary might make you feel like you deserved a bigger raise. Contribution increase calculator. If the interest paid in exceeds any lost investment earnings, taking a 401(k) loan actually can increase the value of your retirement fund. 2) We Double Annual Revenue from Corporate and Capital Gains Tax. The raise is retroactive to the first pay period in 2019, which for many civilian employees was January 6. We developed a living wage calculator to estimate the cost of living in your community or region based on typical expenses. To compute percentage change in stock price if you don't have a digital percent gain calculator app handy, simply subtract the old price from the new price and divide the difference by the old. Canadian Armed Forces Pay Increase. Gross pay estimator This link opens in a new window; This calculator will give you an estimate of your gross pay based on your net pay for a particular pay period (weekly, fortnightly or monthly). This calculator is a tool to help you create Merit Increase Guidelines for your company to use in budgeting salary increases that distinguishes between high and low performers. Step #1: Get the 12-month rate of inflation from the Consumer Price Index (CPI). You can also see how much more you might have if you make small annual increases to your contributions. increase a number by a specified percentage), this can be done by simply multiply the number by 1 + the percentage increase. It varies from city to city and from state to state, as each geographic area has its own economic factors of influence such as their proximity to affordable sources of energy, its ability to connect to sources of consumable products and its appeal for a workforce in. Average increase refers to the average rate of growth that a variable experiences within a given period. All items needed to calculate the gross margin percentage can be found on the income statement. Both member and employer contribution rates can each increase (or decrease) by up to 0. 52) Given the following information, calculate the savings ratio: Liabilities $24,000 Liquid assets $4,400 Monthly credit payments $300 Monthly savings $260 Net worth $72,000 Current liabilities $1,100 Take-home pay $1,800 Gross income $3,000 Monthly expenses $1,540 A. Check out my. Online percentage calculator for all types of percentages. The following are the steps to calculate a wage increase based on inflation. Whether you're planning for an upcoming move or just curious about the cost of living in other cities, the PayScale Cost of Living Calculator is the place to begin your research (or daydreaming). Again, $250 is 62. First, I'll find the actual amount of the increase. The advantage of working with percentages is that they are relatively straightforward to calculate because, unlike fractions, you are always working with a base of 100. All examples are hypothetical and are for illustrative purposes. For an explanation and examples of using percentages generally see our page Percentages: An Introduction. Increases to earnings include a combination of pay awards, reform and incremental progression. Percentage Calculator. You want to determine their raise percentage using the above formula. For details on the formulas used to calculate these two percentages, see the Calculating Percentages in Excel page. What is the amount of the pay increase? Non-union employees will receive a 3 percent pay increase for fiscal years 2013, 2015, 2016, and 2017. The Transparent Buffer Salary Calculator: Try it for yourself! With weighting, multipliers and now The Good Life Curve, all of the various elements of the salary formula can get a bit tricky to explain as we grow the team quickly. *Estimate based on CalSTRS 2% at 60 benefit structure. Otherwise use the below calculators to dig deeper into your potential earnings. However, contractors incur costs employees do not, which they have a right to charge employers for. !Increase £2400 by 9% £ 11. For flexibility, various pay periods can be selected. For instance, if your employer has offered to increase your current salary 20 percent next year and an additional 20 percent the following year, you perform the following calculation to determine your annual salary. In this worksheet we might want to calculate how much our Profits have…changed month by month. These numbers have trended upward year over year, but 2019 shows the biggest increase (4. 27 dollars to pay this off if you just pay the minimum amount each month. For example, say you make $50,000 a year, and your boss gives you a $2,000 a year raise. SA Bond Originators believes this means that with a salary of R20 000 per month, the prospective home buyer can use a maximum monthly sum of about R6 000 to pay off a home loan. Click any blank cell. The spending plan involves a $5 billion hike in income taxes: It raises the individual rate to 4. The intersection of these two ratings is 81. They are not the percentage of increase that employees can expect across the board. The percent of increase or decrease is the measure of percent change. Use this interest calculator to determine the effect of compound interest of an asset. Calculate your salary, take home pay, net wage after tax & PAYE. 41 in property taxes per year. Compound interest - meaning that the interest you earn each year is added to your principal, so that the balance doesn't merely grow, it grows at an increasing rate - is one of the most useful concepts in finance. Salary data from more than 33,000 project management practitioners; Responses from professionals in 37 countries (Chile, Costa Rica and Ecuador are new to this edition) A general listing of median salaries reported by country from highest to lowest. The idea is you enter one number and it will calculate the rest! It also allows you to enter a percentage of your wages to see how much that would be each hour, day, week etc. Percentage Calculator: Calculator or tool that uses the percentage formula to solve for a desired value in that formula. !Increase £2400 by 9% £ 11. I have a small/mid size business (20 people) and would like to know: 1) Is there a nation wide average of pay raise percentages for certain business? 2) What does everybody in this forum think the appropriate pay raise percentage for employees should be?. At CalcXML we know the value of compound interest. However, it’s even smarter to pay off your debts in the right order. Percentage Practice To find the percent of a number, change the percent to a decimal and multiply. Congressional Budget Office (CBO) for the increase in the ECI for that year but is perhaps consistent with DoD’s own projection of the ECI. Global Workplace Analytics - The latest research on agile work, telework, telecommuting, hoteling, desk sharing, virtual work, workplace well-being, and other changing workplace strategies. Hundreds of teachers in Australia submitted their annual wage during 2010 - 2017. Here is an example: If the board granted a 3 percent pay increase and the midpoint of your pay grade is $15. Percentage Calculator is a free online tool to calculate percentages. The calculator determines that you got a 4 percent. Our easy-to-use salary sacrifice calculator helps show the financial benefits of this, and can work out figures based on a percentage of salary or fixed amount. Private Industry Workers Compensation costs for private industry workers increased 2. Depending on the information you provide, the Pay Rate Calculator computes different information: Enter your annual salary to calculate your bi-weekly gross; Enter your bi-weekly gross to calculate your annual salary; Calculate hourly and premium rates that could apply if you are paid overtime. * This is a hypothetical illustration only, assuming an annual 5% rate of return, a salary increase of 3% per year, a contribution increase of 1% per year for 5 years. Brian Schatz (D-Hawaii) reintroduced Tuesday, would give federal employees a 3. The amount you come up with will give you your raise. Knowing which debts to target first, and which debts to leave for later, could potentially save you a lot of money, get you out of debt faster, and boost your credit score, too. Calculate a percentage of increase Click any blank cell. When a member retires, the employer is required to pay TRS contributions equal to the actuarial value of a pension benefit that results from any salary increase over 6 percent that is used in a retiring member's final average salary calculation. If your answer is a negative number then this is a percentage increase. Want to do this percentage calculation yourself? Calculating a percentage increase or decrease yourself is best done in two steps. Her gross annual salary is $40,000. To calculate your pay raise percentage based on a dollar amount increase, subtract your current pay or salary from your new pay or salary, divide the result by your current pay and convert that result to a percentage (move decimal point 2 places to the right). A promotional increase is a 10 percent increase in base pay given to employees who are promoted to positions in higher pay bands. and the Statewide Average Salary Adjustment percentage, to pay for the salary increases. Contract pay calculator Being a contractor has many legal and financial benefits over being an employee, as well as a sense of independence. 5% reduction it was 50. In this calculator it is possible to change a common fraction into its equivalent as a percentage. Percentage Calculators. The cost of living in San Francisco, California is 51. How to use this online calculator: Enter your current salary and the expected yearly increase in percent. Now updated with tax withholding guidelines based on the new tax plan. 2 times general inflation to 2. Percentage Calculator. Calculate pay. Working Overtime Is More Taxing Than You Think. Pay Rise Calculator. Percentage Difference Calculators. 2 percent in 2019, up from an actual year-over-year increase of 3. !Oliverʼs salary is £18,000 and he is due to get an increase of 4%. Calculator Results. According to the new Dice Salary Survey, tech pros with significant levels of experience under their proverbial belt should see heady increases in annual salary. Compound interest, or 'interest on interest', is calculated with the compound interest formula. Millions of real salary data collected from government and companies - annual starting salaries, average salaries, payscale by company, job title, and city. To find out your take home pay, enter your gross wage into the calculator. This calculator allows you to compare two salaries side-by-side. If your answer is a negative number then this is a percentage increase. Latest COLA The latest COLA is 1. Calculate a percentage of increase. 6 percent effective for payments made for January 2020. You can apply the math and theory behind average increase to many real-life situations, such as speed, finances or population growth. The percentage increase/decrease from old value (V old) to new value (V new) is equal to the old and new values difference divided by the old value times 100%: percentage increase/decrease = (V new - V old) / V old × 100%. com's Cost of Living Calculator lets you compare the cost of living and salary differentials State to State or over 300+ US cities. Calculate overtime pay for monthly-rated employees covered under Part IV of the Employment Act. 05, while 12 percent. 89 percent on average (3 percent median) for those budgeting for a merit pay. Second: Take 10 percent, and divide by 2nd percentage: 10/5 = 2. This calculator has been updated to use the new withholding schedules for 2010. Calculate a percentage of increase Click any blank cell. Percentage Calculator is a free online tool to calculate percentages. FederalPay's 2020 Pay Increase Predication is % Our best predictor of amount of the military pay raise that will be passed for 2020 is the the Quarter 1 increase in the wages and salaries for private industry workers (12-month percent change, not seasonally adjusted). Records will be audited prior to a formal calculation by PERA when you apply for a purchase, benefit, or a refund, and therefore the formal calculation by PERA may differ from the results estimated by the online calculators. Unless you get a raise that at least matches inflation, your salary will have a less purchasing power next year and you will be able to afford fewer items. Because it costs more to maintain the same life, you may consider giving your employees wage adjustments to match. The CPI calculator gives you the cost-of-living increase over any period. If your employee receives a raise in the middle of the pay period, you will need to manually calculate the prorated amount to accommodate the salary change. appointment; or 2. Percentage Calculator. (Realistically, you must count sneaky fringes as profit for this calculation. Results This area indicates the amount of your contribution and an example of how your take home pay could change if your contribution is made pre-tax (deducted from your paycheck. Use this interest calculator to determine the effect of compound interest of an asset. However, it’s even smarter to pay off your debts in the right order. This is what we learned from our study: Post-MBA Starting Pay. It may be better to accept a lower salary if your employer is willing to cover 100 percent of your health premiums. The increase for FY2013 will be effective April 7, 2013, and non-union employees will receive retroactive pay. 05, while 12 percent. The Inflation Calculator below can help you calculate future values based on an assumption of the annual inflation rate. Calculate the present value of this bond. Step increase generally equate to 2 or 3 percent raise. All examples are hypothetical and are for illustrative purposes. Percentage increase calculator will give the percent of increase from the first amount to the second one. I am trying to calculate an hourly pay rate on Excel using the time format in one cell and using a currency format in another. Calculate your pay raise and get all the details of hourly, weekly, monthly, semi-monthly, and annual conversions automatically. What is the Hourly Rate calculator? It's a simple tool that will help you calculate how much you need to charge per hour based on the lifestyle you plan to have and expenses associated with your web design freelancing work. When the teacher completes the 10th year the pay will become:. 4 percent pay raise across the board, with an additional. Use the Take Home Pay Calculator to estimate the actual paycheck amount that is brought home after taxes and deductions from salary. Benefits combined are worth about 30 percent of your total compensation package, according to the U. (See Attachment 1. Using Excel to Calculate Your Annual Salary With Increases Here's how to determine your annual salary after a raise, as well as how much of a difference it could make in each of your paychecks. and the Statewide Average Salary Adjustment percentage, to pay for the salary increases. One of the most useful formulas to use in spreadsheets is for percentage increases. To help, we've provided a simple retroactive pay calculator with a radio button option that lets you calculate retroactive pay amounts for hourly and salaried employees. A number of readers have asked when FedSmith would update the GS Pay Calculator to reflect this new information. In our example this would be 115 minus 76. Again, $250 is 62. 6 percent increase in 2020 – down more than 1 percent from last year. This is only an approximation. Net Profit = Gross Profit less Company Overhead and Taxes (also known as Net Income or “the bottom line” in financial statements). Percentages can be written in decimal form. Percentage Calculator: Probably the World's Easiest Percent-Calculator. The following are the steps to calculate a wage increase based on inflation. …Let's say we want to focus on Profits. Fabick CAT improved the “percent of industry net sales” by 300% by focusing on employee happiness. Timing of Compensation Adjustments. For instance, even when watching the news, you'll often hear a change described in large numbers without any. Savings Calculator This one takes a lump sum of money and compounds it monthly over a fixed period of time at a fixed annual yield. Our online calculator will calculate percent increase, and it will also calculate percent decrease, and percent difference as well. His stock price went from $45 per share, to $47 per share. Next is "Net Pay" or your take-home-pay. With this formula you can easily find out the difference between two figures and see whether it is a positive or negative percentage. Here is a hypothetical example. This is what we learned from our study: Post-MBA Starting Pay. How to calculate a new salary after receiving a raise as a percentage of your old salary. Our Percent Calculator calculates percentages based on various inputs including ratios, fractions, percentage grades, statistics and percentage increase/decrease. Many students find math questions that involve percent increase and percent decrease somewhat confusing. Percentage difference is usually calculated when you want to know the difference in percentage between two numbers. " 240 is what percent of 400? 240 ÷ 400 =. Type the numbers in the boxes and then click "Calculate Salary Table" If the number is 6. However, contractors incur costs employees do not, which they have a right to charge employers for. The Social Security cost-of-living adjustment (COLA) is based on the percentage increase in the Consumer Price Index. Percentage change from one number to another number, is determined by dividing the difference of the two numbers by the original number. appointment; or 2. The Social Security cost-of-living adjustment (COLA) is based on the percentage increase in the Consumer Price Index. Before you ask your boss for a raise, make sure your presentation is professional. Income tax. There are numerous percentage calculators online that can help with task by simply searching for "percentage calculator. Use SmartAsset's paycheck calculator to calculate your take home pay per paycheck for both salary and hourly jobs after taking into account federal, state, and local taxes. Calculator Use. The trend is to reward top performers with a higher than average pay raise and average workers with lower pay raises. 6 trillion over the next decade. Findings in the Annual Compensation Report are used to develop recommendations for salary adjustments, medical, dental, and basic life insurance plan premium contributions, and leave benefits. The calculator determines that you got a 4 percent. A free calculator to convert a salary between its hourly, biweekly, monthly, and annual amounts. However, calculating the percentages can be confusing. If Trump had not acted, workers were scheduled for an across-the-board base pay raise of 1. It is a simple percent increase type formula: (Expected US Inflation Rate) x (Current Salary) + (Current Salary) = Salary to Keep Up to Inflation. For more general percentage calculations see our page Percentage Calculators. Results This area indicates the amount of your contribution and an example of how your take home pay could change if your contribution is made pre-tax (deducted from your paycheck. Calculate a percentage of increase Click any blank cell. appointment; or 2. Divide the dollar amount of the increase by your old salary to determine the percentage increase. We use your income & location to estimate your total tax burden. inflation rate [d]. Open search form. And that's the reason we created our simple tool. 50 and get the result of 150. This inflation calculator uses the Consumer Price Index (CPI) to measure the purchasing power of the U. Calculate a percent of a value before and after, or find the percentage change between two values, and see how to calculate each one. First is "Your Paycheck Results" which is your gross pay and specific deductions from your paycheck. The current prime interest rate plays a big role. A salary increase letter is the first step in requesting a raise. This calculator will show you how much you will save if you pay 1/2 of your mortgage payment every two weeks instead of making a full mortgage payment once a month. Salary Definition. Healthcare reform will be expensive and difficult at first. Under the retirement law, retirees may receive an annual PPPA paid in the May 1 warrant each year. Department of Labor, Bureau of Labor Statistics. It can be extremely misleading to compare percentages. Full-Time Equivalent Employee. 7" (no quotations marks). ) The Executive order authorizes a 1 percent across-the-board increase for statutory pay systems and locality pay increases costing approximately 0. Few workers receive raises in consistent percentages each and every year. Just enter the original amount in the box on the left and the final amount in the box on the right. Use tools like this Budget Calculator to make the process dynamic so you can add any unforeseen expenses in your next month's budget. Pay Raise Calculator calculator A calculator is a small (often pocket-sized), usually inexpensive electronic device used to perform the basic operations of arithmetic. The US Salary Inflation Calculator is a tool that calculates the needed salary to combat inflation based on an expected inflation rate and initial salary amount. 4 percent pay hike in 2010, is 0. Percentage Calculator with detailed solution is the fast and interactive program which always help you solve different problems with percents. One of the most useful formulas to use in spreadsheets is for percentage increases. The wage can be annual, monthly, weekly, daily, or hourly - just be sure to configure the calculator with the relevant frequency. Cost-of-Living Adjustment (COLA) is a permanent annual increase to your retirement benefit that is based on the cost-of-living index. a new salary or hourly rate, versus your previous one. As of this writing, the 12-month rate of inflation is 2%. Use any currency you wish (denoted ¤), the result will be in the same currency. 5% of how much? Press. Calculator Results. The calculator shows changes to basic pay over the three years. Bonus (Aggregate) Calculator. Congratulations on getting a raise! This calculator can calculate the amount and percentage of your pay raise. Calculating Retroactive Pay. The guidelines that govern the DA vary according to where one lives. How to Calculate Salary Increase Based on Inflation. The calculations and formulas (press the '?' button) are calculated automatically as you type! Learn the basics of percentages: How to Calculate Percentages. For Jim ($35,000), apply a 3 percent annual increase rate. Siding replacement recouped 92. Payroll Calculators. Use SmartAsset's paycheck calculator to calculate your take home pay per paycheck for both salary and hourly jobs after taking into account federal, state, and local taxes. If the interest paid in exceeds any lost investment earnings, taking a 401(k) loan actually can increase the value of your retirement fund. 1 percent for 2018, confirming that wage growth remains. All items needed to calculate the gross margin percentage can be found on the income statement. The increase for FY2013 will be effective April 7, 2013, and non-union employees will receive retroactive pay. If you live in the USA, enter the salary in US dollars. This calculator helps you calculate the percentage increase of a value based upon the initial value and the amount of increase. The trend is to reward top performers with a higher than average pay raise and average workers with lower pay raises. If you know your weekly or biweekly salary, you can use Microsoft Excel to calculate your annual salary. inflation rate [d]. FICA Tip Credit Calculator. Hundreds of teachers in Australia submitted their annual wage during 2010 - 2017. Should you pay off your student loan first, or tackle your credit card balances?. US Salary Calculator. General Schedule Pay Calculator. The percentages in the table above for subsequent financial years are based on the ERO that applies from 1 July to 30 November (five months) plus the ERO percentage increase from 1 December to 30 June (seven months). A number of readers have asked when FedSmith would update the GS Pay Calculator to reflect this new information. Last modified: 27 Jun 2019 QC 18296. The ClearanceJobs Salary Calculator uses proprietary data to determine the current and desired salaries for security-cleared professionals based on clearance level, location, and/or industry. The Transparent Buffer Salary Calculator: Try it for yourself! With weighting, multipliers and now The Good Life Curve, all of the various elements of the salary formula can get a bit tricky to explain as we grow the team quickly. Absenteeism Rate – calculate the number of days absent for employees in a 12 month period for the following reasons: A. An exception is percentage points (example: 2 percentage points). Updated for 2018/2019/2020, it accurately calculates your HMRC Income Tax, salary, PAYE, National Insurance, student loan repayment, and pension contibutions. 5% of 50: the "50 less 12. Understanding Successive percent increase/decrease is very important. Two scenarios: (1) If the ranges increase faster than the salary, or (2) if an employee moves into a role with a higher midpoint but the same salary, the compa-ratio will decrease. Read a full breakdown of the tax you pay: Tax Rates 2019/20 IMPORTANT! This is only a ready reckoner that makes standard assumptions to estimate your tax breakdown. These tools include our salary calculator, Julie is likely due for a raise. , Weekly, Monthly, etc. The Percent Off Calculator is used to calculate the sale price of a discounted item after the percent off discount is applied. The annual maximum for 2019 is $19,000. For the latest on other topics that affect your income, plus more guides & deals, get our free weekly email. Free math lessons and math homework help from basic math to algebra, geometry and beyond. The following are the steps to calculate a wage increase based on inflation. Enjoy! I also just added a "Future Income" addition where you enter a salary increase and a number of years to see that the values will be in the future. Please see our calculator assumptions for full details. For M&P staff, employees who are hired between the minimum and midpoint and are performing satisfactorily, progress to the midpoint of their salary range in no more than four years. Unless you get a raise that at least matches inflation, your salary will have a less purchasing power next year and you will be able to afford fewer items. When you got a promotion or when you switch to an another job with a salary hike, then its important to know how much percentage of hike you have got in your new job. At Muslim Aid, we want to make paying your Zakat as easy as possible, which is why we have created a helpful Zakat calculator for your ease and convenience. 1 percent of your high-3 average salary for each year of service Total Service used in the computation will be increased by the amount of time you have received a disability annuity. 7 then type "6. 8 percent increase was determined by computing the percentage increase in the Consumer Price Index (CPI) for urban wage earners and clerical workers from the third quarter average of 2017 to the third quarter average 2018, as provided by the U. Allocate money to save each month and build a cushion. Average Weekly Earnings (AWE) provides time series estimates (updated monthly) of change in average earnings. BIL is also a reward that can be given in combination with base pay increases where the employee's work. Net Pay Calculator This net pay calculator can be used for estimating taxes and net pay. In other words, it makes a difference if we look at the change as a rise or a fall; this is "end-point problem". Calculate what percent Calculate percent of what. 67 percent E. So, your gross profit margin for the week is 40%. The Social Security and Supplemental Security Income (SSI) beneficiaries will receive a 1. 05)(840) = 42. Use this pay calculator to calculate your take home pay in Australia. Divide the dollar amount of the increase by your old salary to determine the percentage increase. You can enter the amount of your current and proposed contributions as a percent of your pay, or as dollar amounts per pay period. How Contributions are Calculated. This offset will be given as a tax return at the end of the year so it won't effect your pay. Are you wondering how enrolling in the Pay As You Earn (PAYE) federal student loan repayment plan could impact your student loan payments? Use our PAYE Calculator to see how PAYE may be able to lower your monthly payments as well as result in forgiveness of your student loans. If you want to know how to calculate percent increase you can use the percent increase calculator or work it out by hand. What if you need to calculate percentage increase or percent decrease between two percentages? Math Example: You need to calculate percent % increase from 5% to 15%. PayCalc is updated every year and currently you can use pay rates to calculate net pay for previous (2018/2019) and current (2019/2020) financial years. 4 percent pay raise across the board, with an additional. Average Weekly Earnings (AWE) provides time series estimates (updated monthly) of change in average earnings. a positive real number and $\%$ after the number. Below your paycheck results are broken down into three sections. What is the percentage increase from X to Y What is the percentage increase from X to Y. 00 an hour, but received a raise, and now receives $7. Here is a hypothetical example. Latest COLA The latest COLA is 1. You want their new annual salary to be $52,000. First you need to subtract the smaller number from the larger one. 00 and you hope to receive a 3% annual salary increase. Because if you're not sure about what hourly rate you're using on your web design contract, you're starting on the wrong. 02 percent of salary to the Health Care Trust Fund. For salary or wage payments made on or after 1 July 2014, the minimum SG contribution rate of 9. 5 percent over 42 months. 6 percent beginning with the December 2019 benefits, which are payable in January 2020. Enter 0 for "Percent Increase (markup). Use SmartAsset's California paycheck calculator to calculate your take home pay per paycheck for both salary and hourly jobs after taking into account federal, state, and local taxes. Enjoy! I also just added a "Future Income" addition where you enter a salary increase and a number of years to see that the values will be in the future. Use the Pay Raise Calculator to determine your pay raise and see a comparison before and after the salary increase. I have a small/mid size business (20 people) and would like to know: 1) Is there a nation wide average of pay raise percentages for certain business? 2) What does everybody in this forum think the appropriate pay raise percentage for employees should be?. To compute percentage change in stock price if you don't have a digital percent gain calculator app handy, simply subtract the old price from the new price and divide the difference by the old. When the teacher completes the 10th year the pay will become:. You can calculate the "percentage difference" one way and get (15 - 10)/10 = 50% or the other way and get (15 - 10)/15 = 33. For example, in the 10 years between in January 2000 and January 2010 £1000 increased to £1307. Where's the data from?.