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