PercentMath

Simple, Fast Percentage Calculations

Ask a Question

Try: "what is 20% of 150" or "25 is what percent of 100"
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Or Use These Calculators

Calculate Percentage

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Formula: (percentage รท 100) ร— number

Find What Percent

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Formula: (part รท whole) ร— 100

Percentage Change

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Formula: ((new - old) รท old) ร— 100