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A quick answer

Percentage calculator

Find a percentage, compare two amounts or work out a percentage change.

Free to use · No sign-up · On your device

Results are rounded to eight decimal places.

YOUR RESULT

Your result appears here.

Three simple steps.

  1. Choose the calculation you need.
  2. Enter your two numbers.
  3. Calculate, then copy the result.

Good to know.

Which calculations are included?

Find a percentage of an amount, find one number as a percentage of another, or calculate the percentage change from an original value.

Can I use negative numbers?

Yes for percentage-of calculations. Percentage change needs a positive original value so the comparison has a clear baseline.

How precise is the result?

Results show up to eight decimal places. This is an everyday calculator, not an accounting ledger; very large numbers can lose precision.

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Here is what happens in a demo, sped up.

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  • 30 minutes
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  • No obligation

Automation for your business.

Example: a dental clinic.

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