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Calculate percentage difference between two values

Compare two values symmetrically: |a−b| / ((a+b)/2) × 100%.

Also known as: calculate percentage difference between two values calculator, percentage difference calculator, calculate percentage difference between two values, percentages math, percentages calculate percentage difference between two values

Inputs

Results update when you click Calculate.

Percentage difference

18.18%

|50.0000 − 60.0000| / ((50.0000 + 60.0000)/2) × 100 = 18.18%

Absolute difference

10.0000

Average

55.0000

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What this result means

Compare two values symmetrically: |a−b| / ((a+b)/2) × 100%. % difference = |a−b| / ((a+b)/2) × 100 — symmetric comparison.

Assumptions

  • Rule dependency: Universal formula.

Formula

% difference = |a−b| / ((a+b)/2) × 100 — symmetric comparison.

Example

50 vs 60 → 18.18% difference.

Frequently asked questions

vs percent change?+

Percent change is directional from a baseline; percent difference is symmetric.