Enter an old value and new value to calculate the percentage change automatically. Detects increase or decrease, and also shows absolute difference and multiplier.
Enter values above to see results.
% Change = (New − Old) / |Old| × 100What it is, who it's for, how it works and why you'd use it.
A Percentage Change Calculator computes the percentage difference between two values and automatically identifies whether it is an increase or decrease.
It is for business professionals, PMs, marketers, and office workers who need to quickly assess how a metric has changed.
The formula (New − Old) / |Old| × 100 is applied; the sign determines the direction, which the calculator labels as Increase or Decrease.
It saves you from mentally tracking the sign and handles both directions in one place — no need for separate increase/decrease calculators.