Percentage change calculator
Compare a new value with a positive original value.
Formula
Change (%) = (new − original) / original × 100
Percentage change ≈ ((100)-(80))÷(80)×100
How to use
- Enter the original value.
- Enter the new value.
- Read the signed percentage change.
Examples
- 80 to 100 is a 25% increase.
- 200 to 150 is a 25% decrease.
Frequently asked questions
What does a negative result mean?
The new value is lower than the original.
Can the original value be zero?
No. Percentage change divides by the original value.
Is this percentage-point change?
No. A rate rising from 10% to 15% rises 50%, or 5 percentage points.
Sources
Updated: