The increase is 25, and 25 is 25% of 100.
Percent increase calculator
Percentage Increase Calculator
Use this calculator when a number has gone up and you want to know how large the increase is compared with the original value. It is built for growth, price rises, score changes, and any before-and-after number that moved upward.
Percent increase calculator
Calculate percentage increase
Enter the original value and the new value. The calculator shows the percentage increase, the difference, the percentage increase formula, and the steps.
Answer
Increase
25%100 to 125 is a 25% increase.
- Difference
- 25
- Percent change
- 25%
Formula
((new value - old value) / old value) x 100- Subtract 100 from 125 to get 25.
- Divide 25 by 100.
- Multiply by 100: 25% increase.
Formula
Percentage Increase Calculator formula
Use the formula when you want to check the calculation by hand.
((new value - original value) / original value) x 100- Subtract the original value from the new value.
- Divide the increase by the original value.
- Multiply by 100 to turn the result into a percentage.
Need the method explained in more detail? Read the percentage increase formula with worked examples and common mistakes.
Examples
Common percentage increase calculator examples
These examples show the same formula with different numbers.
The increase is 10, and 10 divided by 40 is 0.25.
The increase is 50, and 50 divided by 250 is 0.2.
The increase is 21, and 21 divided by 104 is 0.2019.
The new value is 20% higher than the original value of 80.
The increase is 300, and 300 divided by 1,200 is 0.25.
Use cases
When to use this percentage increase calculator
Pick the calculator that matches the wording of the problem.
Prices and costs
Check how much a bill, subscription, rent, or product price increased from the old amount to the new amount.
Growth and results
Determine percent increase for visitors, revenue, sales, grades, fitness scores, or completed tasks.
Before and after
Figure percent increase when you have a clear original value and a higher new value.
Not a discount tool
If the number went down, use a percentage change calculator or percent off calculator so the wording stays clear.
Choose the right formula
Percentage increase vs other percentage calculators
The denominator is what decides ownership. Percentage increase always uses the original value as the base.
Use percentage increase for upward change
Choose this page when the new value is higher and you want to calculate percentage increase from the original value.
Use percentage change for either direction
If the value may go up or down, the percentage change calculator is the broader old-to-new tool.
percentage change calculatorUse percentage difference for side-by-side values
If neither number is the starting value, use the percentage difference calculator because it compares values from their average.
percentage difference calculatorRelated calculators
Choose another percentage calculator
Use a focused page when your percentage question has a narrower meaning.
- percentage calculatorUse the broad calculator for mixed percentage questions.
- percentage difference calculatorUse this when you are comparing two values side by side.
- percentage change calculatorUse this when a value changed from old to new.
- percent off calculatorUse this for discounts and sale prices.
FAQ
Percentage Increase Calculator questions
Short answers for common calculation questions.
How do you calculate percentage increase?
Subtract the original value from the new value, divide that increase by the original value, then multiply by 100.
What is the percentage increase formula?
The percentage increase formula is ((new value - original value) / original value) x 100.
How do I calculate increase by percent?
Use the original value as the base. Find the increase, divide it by the original value, then multiply by 100 to show the increase as a percent.
Is percentage increase the same as percentage change?
Percentage increase is one type of percentage change. Use percentage increase when the new value is higher than the original value.
Can percentage increase be negative?
A true percentage increase is not negative. If the new value is lower than the original value, it is a percentage decrease or a negative percentage change.