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How to Calculate Percentage Difference

Find the percentage difference between two values.

The Formula

|a-b|/((a+b)/2) × 100

The percentage difference formula uses the mathematical relationship: |a-b|/((a+b)/2) × 100. Each variable in the formula represents a measurable quantity that affects the final result.

Step-by-Step Method

  1. 1Identify all input values needed for the percentage difference calculation.
  2. 2Substitute your known values into the formula: |a-b|/((a+b)/2) × 100.
  3. 3Perform the arithmetic operations in the correct order (PEMDAS/BODMAS).
  4. 4Check that your result has the correct units and is within a reasonable range.
  5. 5Verify using the interactive Percentage Difference Calculator to confirm your answer.

Related Topics

percentage difference

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