How much did it change (in %)?
Enter the original and the new amount. We’ll compute percent change.
Result
Result: -10%
Because ((27 − 30) ÷ |30|) × 100
About this calculator
Find how much something increased or decreased in percentage terms. We also show the simple formula.
Examples
- 100 → 125 (increase of 25%)
- 80 → 60 (decrease of 25%)
- 250 → 300 (increase of 20%)
FAQ
- How do I calculate percent change?
- Subtract the original from the new value, divide by the absolute original, then multiply by 100. Example: (125 − 100) ÷ 100 × 100 = 25%.
- What does a negative result mean?
- A negative percent means a decrease. Example: from 80 to 60 is −25%.
- When is this useful?
- Sales growth, weight loss, price changes, portfolio performance—any time something increases or decreases.
Need a different calculation? Try Find a percent of an amount or What percent is one number of another.