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Percentage Calculator

Work out percentages, increases, decreases and differences.

What is X% of Y?
% of = ,
X is what % of Y?
is , of
Percentage change from X to Y
From to = ,
๐Ÿ“– Read the full guide: How to Calculate Percentages (With Real Examples) โ†’
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Solve everyday percentage problems with this free online percentage calculator. Work out what X% of a number is, what percentage one number is of another, and the percentage increase or decrease between two values, all updating as you type.

How to use the percentage calculator

  1. Pick the calculation you need from the three boxes.
  2. Enter your numbers.
  3. Read the answer, it updates instantly.

Why use ToolOtter's Percentage Calculator?

  • 3 percentage calculators in one
  • Live results
  • Increase/decrease with sign
  • Free & instant

Percentage Calculator, frequently asked questions

How do I calculate a percentage of a number?

Use the first box: enter the percentage and the number (e.g. 15% of 200) and the answer appears instantly.

How do I find what percent one number is of another?

Use the second box, enter both numbers and it shows the percentage (e.g. 30 is 15% of 200).

How do I calculate percentage increase or decrease?

The third box takes a starting and ending value and shows the percentage change, with a + or โˆ’ sign.

Is it free?

Yes, completely free with instant results.

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