Percentage Calculator

How to calculate percentage of a number

A percentage means a number out of 100. To find 15% of 200, divide 15 by 100 and multiply by 200. The answer is 30.

Formula

number × percentage ÷ 100

Worked example

Percentage (%)

15

Number

200

Applying the formula to these values gives 30 .

What should I check?

Enter the percentage as 15, not 0.15. To find what percentage one number is of another, use What percentage? instead.

Use the reset button to restore this example. Your inputs are processed in this browser and are not included in a shared calculator link. See our methodology and limitations.