Percentage Increase Calculator
When a price, salary or measurement grows, the percentage increase tells you how big that growth is relative to where it started. Enter the original and new values and this calculator gives you both the raw change and the percent increase.
Results
Formula
How to use this calculator
- Enter the original (starting) value.
- Enter the new value.
- Press Calculate to see the change and the percentage increase.
Worked example
A jacket’s price rises from $80 to $100.
- Change: 100 − 80 = 20.
- Divide by the original: 20 ÷ 80 = 0.25.
- Multiply by 100: 25%.
Result: The price increased by $20, which is a 25% increase.
Frequently asked questions
What is the difference between percentage increase and percentage points?
Percentage points are the simple arithmetic difference between two percentages (5% to 7% is +2 percentage points). Percentage increase is relative: 5% to 7% is a 40% increase.
Can percentage increase exceed 100%?
Yes — any time the value more than doubles. Growing from 50 to 150 is a 200% increase.
Why divide by the old value and not the new one?
Percentage increase is measured relative to where you started. Using the new value would describe a different quantity (closer to a percentage decrease back down).
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