Percentage Difference Calculator

Compare the difference between two values.

Last reviewed
September 2026

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First value

Second value

How we calculate

The absolute difference divided by the average of the two values, expressed as a percentage.

Your values are calculated locally and are not sent to a server by this calculator.

Results are for informational purposes, not financial, tax, legal, lending, or investment advice.

Common questions

Is this calculator free?

Yes. Calculations run in your browser and no account is required.

Are results exact?

Results follow the stated formula. Round currency outputs appropriately for real-world decisions.