Compute percentage increase or decrease between two values, with direction and absolute change.
Old Value — Value for old value. Provide accurate numbers for a reliable Percentage Change. Example: 200.
New Value — Value for new value. Provide accurate numbers for a reliable Percentage Change. Example: 250.
Percentage Change
25%
Percentage Change — Percentage %. Above 0 increases with input; compare to benchmarks or goals.
Direction
Increase
Direction — Calculated outcome. Derived from your inputs via the displayed formula; use to plan.
Absolute Change
50.00
Absolute Change — Calculated outcome. Derived from your inputs via the displayed formula; use to plan.
What this means
A positive result is an increase, a negative result is a decrease. When the old value is zero the change is undefined and shown as N/A.
Percentage change shows how much a value moved relative to its starting point — up or down — which is useful for prices, scores, and metrics.
Formula
change = ((new − old) ÷ old) × 100
Worked examples
FAQ
How do I compute a percentage increase?
Subtract the old from the new, divide by the old value, and multiply by 100.
What if the starting value is zero?
Division by zero is undefined, so the calculator shows N/A for that case.