Percentage Calculator

Calculate a percent of a value before and after,
or find the percentage change between two values,
and see how to calculate each one.

Examples:

  • Apply 10% to 100, and see how each value was calculated
  • Try 12.5% of 50: the "50 less 12.5%" value is 43.75.
  • Then try 12.5% of 43.75 (shows that before a 12.5% reduction it was 50.)
  • Compare 100 to 110, and see that to go from 100 to 110 is a 10% increase, but to go from 110 back down to 100 is a 9.09% decrease (not a 10% decrease)

Note:

x% of y is the same as y% of x

Example: 10% of 15 is the same as 15% of 10

  • 10% of 15 = 1.5
  • 15% of 10 = 1.5