AI Math SolverA percentage difference calculator compares two values of similar status when neither is the original. Enter both to get a symmetric percent difference using their average as the base.
Percentage difference measures the relative gap between two numbers without picking either as the starting point. It suits comparisons like two test scores or two prices where neither is a baseline.
Take the absolute difference, divide by the average of the two values, and multiply by 100. Because the average is the base, swapping the inputs leaves the result unchanged.
Use the average of the two values as the base: |a − b| / ((a + b) / 2) × 100. It is symmetric — the order of the values does not matter.
Percentage increase compares a new value against an original (a clear before and after). Percentage difference compares two values with no original — neither is the baseline.