Find percentages, changes and comparisons using the right reference value.
Find percentages, compare values, and calculate increases or decreases.
Open calculatorMeasure a directional change from a positive starting value to a new value.
Open calculatorCompare two non-negative values when neither is a starting baseline.
Open calculatorA percent-of calculation applies a rate to a base. Percentage change measures movement from an original value, while percentage difference uses the average of two values. Choose the tool that matches the question rather than interchanging these formulas.