Percentage Calculator

Calculate what percentage of a number quickly and accurately.

About the Percentage Calculator

Use this calculator to find a selected percentage of any number, such as a discount, tax amount, commission or proportional share.

How to use it

  1. Enter the percentage you want to calculate.
  2. Enter the number the percentage applies to.
  3. Calculate to display the resulting amount.

Percentage formula

Result = Number × Percentage / 100. For example, 20% of 350 is calculated as 350 × 20 / 100, which equals 70.

Common uses

This calculation is useful for discounts, tips, taxes and progress measurements. To find percentage change or what percentage one value is of another, a different formula is required.