Percentage Increase Calculator
Calculate percentage increase between two numbers. Useful for price increases, growth rates, salary raises, and comparisons.
Result will appear here.
All calculations run locally in your browser. No data is stored.
How it works
Percentage increase formula: ((new − old) ÷ old) × 100
- Step 1: Subtract the old value from the new value.
- Step 2: Divide the difference by the old value.
- Step 3: Multiply by 100 to get the percentage.
Examples
- Old 80 → New 100 → Increase = 25%
- Old 50 → New 60 → Increase = 20%
- Salary 40,000 → 44,000 → Increase = 10%
- Price 120 → 150 → Increase = 25%
FAQ
- What if the old value is 0? Percentage increase is undefined because division by zero is not possible.
- Can the result be negative? If the new value is smaller than the old value, the result represents a decrease.
- Is this the same as percentage change? Percentage change can represent either increase or decrease.
- Why is my result very large? When the old value is small, even small differences can create large percentage increases.
- Is this accurate? Yes. It uses the standard mathematical formula.