Percentage Difference Calculator

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Percentage difference is symmetric and uses the average as the reference. Percentage change is directional and uses V1 as the starting point.
The first value. For percentage change this is the starting (reference) value.
The second value. For percentage change this is the ending (new) value.
Percentage differenceModerate difference
19.3548%

Symmetric: same answer whichever way round you enter the numbers

Percentage change (V1 to V2)21.4286%
Absolute difference15
Midpoint (average)77.5
Percentage difference19.3548%
Percentage change21.4286%

The percentage difference between 70 and 85 is 19.3548%.

  • The two values differ by 15, and their midpoint is 77.5.
  • As a directional percentage change, V2 represents a 21.43% increase from V1.
  • Unlike percentage change, percentage difference is symmetric: swapping V1 and V2 gives the same result.

Next stepUse percentage difference when comparing two measurements with no natural starting point, such as prices in two stores or speeds of two cars. Use percentage change when one value is clearly the baseline.

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