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Percentage Calculator

Work out percentages three ways: what is X% of Y, what percent one number is of another, and the percentage increase or decrease between two values. Great for discounts, marks and profit margins.

100% FreeNo Sign-upNothing UploadedWorks Offline
What is X% of Y?
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X is what percent of Y?
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Increase / decrease from X to Y
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Save this tool Keep it in your list and reopen your work later — no sign-up, nothing uploaded.
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How to use Percentage Calculator

  1. Fill the row you need.
  2. Results calculate instantly.
  3. Use the increase/decrease row for price changes.

Frequently asked questions

How is percentage change calculated?
(New value − Old value) ÷ Old value × 100.
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