Percentage difference calculator

Compare two non-negative values using their average, with the absolute difference and formula shown.

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How to use this tool

  1. Enter two non-negative measurements in the same unit.
  2. Run the tool. It divides the absolute difference by the average of the two values and multiplies by 100.

Things to know

  • Neither value is treated as the starting point. For an increase or decrease from an old value, use Percentage Calculator.
  • Both values cannot be zero because their average would be zero. One zero and one positive value gives 200%. Results are rounded to ten significant digits.
  • Processing stays on your device. Results are not saved between visits.

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