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Percentage calculator

Percentage calculator

Work out percentages, increases and marks percentage.

450of 600

75%

Processed on your device

The working-out happens inside your browser.

Nothing you type is sent
No sign-up
No daily limits

How to use it

Pick what you want to work out.
Enter the two numbers.
Read the answer on the slip.

Opening the tool…

Questions people ask

How do I work out my marks percentage?

Choose Marks percentage, enter the marks you got and the total. For 432 out of 500, that is 86.4%.

How is percentage increase worked out?

(new − old) ÷ old × 100. From 80 to 100 is a 25% increase.

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Virtual ToolKit — free tools that work on your own device. No uploads, no sign-up, no ads.

© 2026 Virtual ToolKit. Calculators give estimates; check important figures with your bank or a professional.

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