Percentage Increase Calculator
Find the percentage increase from an original value to a new larger value.
Percentage Increase Calculator
Increase is 25% Compare the change with the original value.
Percentage Increase Formula
Use this formula when a value goes up:
percentage increase = ((new value - original value) / original value) x 100The original value must not be zero because the change is being compared to the starting amount.
Worked Examples
| Original | New | Change | Percentage increase |
|---|---|---|---|
| 100 | 125 | 25 | 25% |
| 40 | 50 | 10 | 25% |
| 80 | 92 | 12 | 15% |
| 250 | 300 | 50 | 20% |
Where Percentage Increase Helps
- Price increases.
- Salary or allowance increases.
- Growth in savings or investment value.
- Test score improvement.
- Population or traffic growth.
Step-by-Step Example
A price rises from 80 to 92.
- Subtract: 92 - 80 = 12.
- Divide by the original value: 12 / 80 = 0.15.
- Multiply by 100: 0.15 x 100 = 15%.
The percentage increase is 15%.
FAQ
Is percentage increase the same as adding a percent?
Not exactly. Percentage increase compares the change to the original value. Adding 20% to 50 gives 60, and the increase from 50 to 60 is 20%.
What if the new value is smaller?
Use the percentage decrease calculator instead.