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Percentage Calculator

Three percentage tools in one: find a percentage of a number, work out what percent one value is of another, or measure a percent change.

What do you want to calculate?

Percentage / Value A

Value / Value B

Results update automatically as you type.

15% of 200

30.00

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How this is calculated

X% of Y = (X/100) × Y

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Pick the question that matches what you want to know — the fields adapt automatically.

Find the sale price after a percentage discount.

Split a bill and calculate the tip per person.

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