Percentage Increase Calculator
The Percentage Increase Calculator measures how much a value grew, in percent, between an original and a new number — for example a salary raise, a price hike or population growth — and shows the exact amount of the increase.
What this means
Percentage increase tells you the growth relative to where you started. A rise from 100 to 120 is a 20% increase, because 20 is 20% of the original 100.
How we calculate it
Formula
Increase % = (New − Original) ÷ |Original| × 100.Worked example
A salary goes from $50,000 to $55,000:
- 1Increase = 55,000 − 50,000 = 5,000
- 25,000 ÷ 50,000 = 0.10
- 30.10 × 100 = 10% increase
Important assumptions
- Both values must be positive for a meaningful percent increase.
Frequently asked questions
How do I calculate a 10% increase?
Multiply the original value by 1.10. For 200, that gives 220.
What if the new value is lower than the original?
Then it is a percentage decrease. Use the Percentage Decrease Calculator instead.
Related tools
Percentage Difference Calculator
Compare two numbers as a percent difference based on their average.
Percentage Calculator
Percentage of a number, what percent one value is of another, and percentage change.
Percentage Decrease Calculator
Calculate the percent drop between two values, or the increase if it rose.
Probability Calculator
Turn favorable and total outcomes into a probability.
Average Calculator
Find the mean, sum and count of any list of numbers.
Fraction Calculator
Add, subtract, multiply and divide fractions with simplified results.