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Percentage difference

Compare two nonnegative values without choosing a reference.

How this works

Difference divided by the arithmetic mean, times 100. This is not percent change.

Example

Using the example inputs, percentage difference (%) is 22.2222222222.

First value
80
Second value
100
Percentage difference (%)
22.2222222222

Scope and assumptions

Uses your inputs only; results are rounded for display.

OpenStax mathematics

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