Percentage Calculator
Find a percentage of a number, what percent one number is of another, or the percent change between two values.
Result30
How it is calculated
y% of x = x × y ÷ 100. x as a percent of y = x ÷ y × 100. Percent change = (y − x) ÷ x × 100.
Worked example
| Result | 25 |
FAQ
Why is a rise then fall not symmetric?
Percent change is relative to the starting value, so +25% then −25% does not return to the original.
Are the results exact?
Results are estimates for information only; check official sources for binding figures.