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Percentage Calculator

Percent of a number, % change and more

Percentage (%)

Of value

Frequently Asked Questions

How do I calculate a percentage of a number?

Multiply the number by the percentage and divide by 100. For example, 15% of 200 = 200 × 15 ÷ 100 = 30.

How do I work out percentage change?

Percentage change = (new − old) ÷ old × 100. A positive result is an increase; a negative result is a decrease.

Work out a percentage of a number, find what percent one number is of another, or calculate the percentage change between two values.