Percentage calculator

Percentages, without the mental math.

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How to calculate a percentage of a number

  1. Enter the percentage in the first field.
  2. Enter the number you want to apply it to.
  3. Read or copy the result and its displayed formula.

The calculation is percentage × number ÷ 100. For example, 15% of 200 is 30. This calculator handles a percent of a value, rather than percentage change between values.

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