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Percentage difference calculator

Calculate the symmetric percentage difference between two values, regardless of which is larger.

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Percentage difference

22.22%

Calculate the symmetric percentage difference between two values, regardless of which one is larger. Unlike percentage increase, this calculation is always positive and order-independent.

Calculates |A - B| divided by the average of A and B, multiplied by 100.

Use cases

  • Comparing two measurements with no clear time order.
  • Analyzing the spread between two estimates.
  • Comparing prices from two suppliers.

How it works

  1. 1

    Enter value A

    Type the first value.

  2. 2

    Enter value B

    Type the second value.

Frequently asked questions

How is it different from percentage increase?
Percentage increase depends on which value is 'initial'; percentage difference is symmetric and always gives the same result regardless of order.
Calculators