Percentage Calculator

Solve everyday percentage questions, including percentages of a number, percentage increases and decreases.

Calculation details

Input 1

25%

Input 2

400

Result

100
Results are calculated from the selected formula and rounding preference.

Percentage scenarios

Compare results at common percentage values using your second input.

PercentageBase valueCalculated amountRemainder

How this percentage calculator works

The calculator applies basic percentage formulas. Percentage-of multiplies a base by a percentage, “what percent” divides one value by another, and change compares the difference with the original value.