Percentage Increase Calculator

Find out the exact percentage change between an old value and a new value. Useful for tracking business growth or stock market gains.

15% of 10015.00
100 + 15%115.00
100 − 15%85.00

How to use this tool

  1. 1Select Change ModeChoose the "Percentage increase/decrease" mode.
  2. 2Input NumbersEnter your starting value and your ending value.
  3. 3View ChangeInstantly see if it is an increase or decrease and by what percent.

What this tool is useful for

  • Calculating month-over-month revenue growth for a business.
  • Tracking percentage gains or losses in a stock portfolio.
  • Finding the percentage markup on retail products.

Privacy & processing

All processing is executed locally using your browser. Your data is never sent to a server.