Percentage Change Calculator
Calculate the percentage increase or decrease between two numbers, like an old and new price or salary. Instant, simple and free online.
% of
= 25
is what % of
= 25%
→
= +25% · difference 50 · 1.25× the original
Ad space · responsive
How to use Percentage Change Calculator
- Enter the old value and the new value.
- Read the percentage increase or decrease, plus the difference.
Privacy
Runs entirely in your browser. Nothing you enter or open here is uploaded.
Questions
How is percentage change calculated?
(new − old) ÷ old × 100. From 200 to 250 is +25%; from 250 back to 200 is −20%.
Why isn't the change back the same percentage?
Because each change is measured against a different starting value.