Percent Difference Calculator
Calculate the percent difference between two values — the relative difference with no direction implied.
Percent Difference
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Percent Difference Formula
% Difference = (|V1 − V2| / ((V1 + V2) / 2)) × 100
Example: V1 = 40, V2 = 50
|40 − 50| = 10 Average = 45
% Difference = (10 / 45) × 100 = 22.22%
|40 − 50| = 10 Average = 45
% Difference = (10 / 45) × 100 = 22.22%
Percent Difference vs Percent Change
Percent difference compares two values symmetrically (neither is the "original"). Percent change has a defined starting point.
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Last updated: 2026-08-08