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Percentage calculator

Work out percentages, percentage changes, increases, decreases, discounts, reverse percentages and profit margins in seconds.

  • Seven calculators
  • Instant results
  • Free, no account
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Seven calculators

Every common percentage question in one place.

Instant

Answers update as you type.

Clear working

Each answer explains itself in a sentence.

Questions

What is the difference between margin and markup?

Margin is profit as a share of the selling price. Markup is profit as a share of the cost. Selling for £20 something that cost £12 is a 40% margin but a 66.67% markup.

How do I find the price before a discount?

Use Original value before a % change with a minus figure, for example −20 for 20% off.

Is anything uploaded?

No. Everything happens in your browser, on your device. Nothing you add or type is sent to this website or anywhere else.

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