Percentage Change Calculator
Increase, decrease and percentage-point difference.
Reviewed by James Whitfield · How we check our maths
Your values
ⓘ Live results
Results
- Percentage change
- +26.4%
- Direction
- Increase
- Absolute change
- 330
- Multiplier
- 1.264×
- Percentage difference
- 23.322%
Working
- 1Δ% = (1580 − 1250) ÷ 1250 × 100 = 26.4%
Quick answer
Percentage change is (new − old) ÷ old × 100; a negative result means a decrease.
The formula
Δ% = (new − old) ÷ |old| × 100
Worked example
Worked example
Using the values the calculator loads with.
Inputs
- Original value1250
- New value1580
Result
- Percentage change+26.4%
- DirectionIncrease
- Absolute change330
- Multiplier1.264×
- Percentage difference23.322%
How to use the Percentage Change Calculator
- 1Enter the original value.
- 2Enter the new value.
- 3Read the change as a percentage and a multiplier.
Frequently asked questions
What's the difference between percent and percentage points?
Going from 5% to 7% is a 2 percentage-point rise but a 40% relative increase — news headlines often confuse these.
Why isn't a 50% fall reversed by a 50% rise?
Because the base changes. After a 50% drop you need a 100% rise to get back to where you started.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error