Standard Calculator
Everyday arithmetic, with a little more room to think.
Math & Statistics · FREE TO USE
Percentage Change
Measure the increase or decrease between two values.
02EXAMPLE RESULT
Percentage change
25
%
Absolute change20
Original value80
New value100
Results update as you type. Calculate adds a snapshot to your history.
How this calculation works
The original value must be greater than zero so that a relative change is meaningful. A negative result indicates a decrease.
Change (%) = (new − original) ÷ original × 100
Your calculation, step by step
- 100 − 80 = 20
- 20 ÷ 80 × 100 = 25%
A worked example
An increase from 80 to 100 is 25%.