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Percentage Difference Calculator

Find the percentage difference between two values on equal footing.

Complete User Guide

Enter the two values (V1 and V2). The calculator finds the absolute difference, divides by the average of the two values, and multiplies by 100. The result is always positive and treats both values symmetrically.

The Mathematical Formula
(|V1 - V2| / ((V1 + V2)/2)) × 100

Percentage Difference = (|V1 − V2| / ((V1 + V2) / 2)) × 100. Using the average as the denominator means neither value is privileged as the 'base', making it a symmetric measure of difference.

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