Percentage Increase Calculator
Find how much a number increased compared with its starting value.
Percentage Increase Calculator
Percentage Increase Calculator Formula
Use this formula to check the result from the percentage increase calculator or to calculate it by hand.
Formula
((new value - old value) / |old value|) x 100
Example
Steps
- 1125 - 100 = 25
- 225 / 100 = 0.25
- 30.25 x 100 = 25% increase
When to use this calculator
Worked examples
From 80 to 100 is a 25% increase.
From 45 to 54 is a 20% increase.
Common mistakes
- Using the new value as the denominator instead of the old value.
- Forgetting that an increase from zero is undefined.
Other Calculators
Simple tools for nearby percentage questions.
Percentage Calculator
Calculate a percentage, percent of a number, or part of a whole.
Percentage Difference Calculator
Compare two values using percentage difference.
Percentage Change Calculator
Calculate increases and decreases between old and new values.
Percentage Decrease Calculator
Find percent decrease from an original value to a lower value.
Discount Calculator
Find sale prices and savings from a discount percent.
FAQ
Subtract the old value from the new value, divide by the absolute old value, then multiply by 100.
No. Percentage increase from zero is undefined because the formula requires division by the old value.