Enter your values
Percent Change
—
Enter values to calculate.
How this calculator works
Percent change compares the difference between an ending value and a starting value to the starting value. A positive answer means the value went up, while a negative answer means it went down.
Formula: ((ending value − starting value) ÷ starting value) × 100
Example
If a number changes from 80 to 96:
((96 − 80) ÷ 80) × 100 = 20%
So the percent change is 20%, which means the value increased by 20%.
Common uses
- Comparing sales, profit, or traffic from one period to another
- Measuring grade changes or test score differences
- Tracking stock prices, market movements, or investments
- Analyzing changes in population, costs, or performance metrics
Frequently asked questions
What is the difference between percent change and percentage increase?
Percent change can be positive or negative, while percentage increase usually refers only to upward movement.
Percent change can be positive or negative, while percentage increase usually refers only to upward movement.
What does a negative result mean?
A negative percent change means the ending value is lower than the starting value, so the value decreased.
A negative percent change means the ending value is lower than the starting value, so the value decreased.
Can I use this calculator for any units?
Yes. As long as both numbers use the same unit, you can measure percent change for money, counts, scores, distances, and more.
Yes. As long as both numbers use the same unit, you can measure percent change for money, counts, scores, distances, and more.