Percentage Calculator

Six ways to calculate percentages instantly

What is X% of Y?

% of= ?

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X is what % of Y?

is what % of

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Percentage increase / decrease

Fromto

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Add X% to a number

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Subtract X% from a number

−%

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X is Y% of what number?

is% of ?

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Percentage formulas

Percentage = (Part ÷ Whole) × 100. For example, if 30 out of 200 students passed, the pass percentage = (30 ÷ 200) × 100 = 15%.

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