Enter the original value
Type the starting number, for example the old price.
Calculators
Percentage Increase Calculator
Free online percentage increase calculator
Enter the values
Local processingThe difference is divided by the original value and multiplied by 100.
Result
The result will appear here after you run the tool.
Press Ctrl or Command and Enter to run the tool.
About this tool
About this tool
Percentage Increase Calculator divides the difference between the new and original values by the original value and multiplies by 100. A decrease is rejected with a clear message directing you to the percentage change tool.
Measure growth clearly. Enter the original value and the new value, and the calculator returns the percentage increase, the absolute difference, and the formula behind the result. Built for prices, salaries, revenue, and any before-and-after comparison where the value goes up.
Built for daily work
- Measure a salary or rent increase year over year.
- Track revenue growth between quarters.
- Calculate a price rise on a product or service.
- Report population or traffic growth percentages.
How to use this tool
How to use this tool
Enter the new value
Type the number it increased to.
Read the increase
The percentage increase appears with the difference and the formula.
Key features
Key features
Increase-focused
The tool is built for upward comparisons and rejects decreases with guidance.
Difference shown
The absolute change is displayed next to the percentage.
Formula transparency
The calculation is shown so results are easy to verify.
Instant local math
Results update with the Calculate button entirely in your browser.
Practical use cases
Practical use cases
- Measure a salary or rent increase year over year.
- Track revenue growth between quarters.
- Calculate a price rise on a product or service.
- Report population or traffic growth percentages.
- Quantify an increase in operating costs.
Private by default
For local tools, input is processed in your browser and is not sent to application analytics.
Data processing noticeTechnical details
Technical details
ProcessingLocal browser processing
Formula(new - original) / original x 100
OutputPercentage increase and absolute difference
PrivacyValues never leave the browser
Limitations and important notes
Limitations and important notes
- A percentage increase from a small base can look dramatic; check the absolute difference too.
- The original value cannot be zero.
- Compounded growth over multiple periods is not calculated here.
Frequently asked questions
Frequently asked questions
It is the new value minus the original value, divided by the original value, multiplied by 100.
That is a decrease, not an increase. The tool asks you to use the percentage change calculator instead.
No. Division by zero is undefined, so a non-zero original value is required.
Yes, and the result is rounded only for display.
Related guides and solutions
Related guides and solutions
Calculate a percentage increase in seconds
Salary changes, price rises, revenue growth, and cost increases are all percentage increase questions. Enter the original and new values, and the calculator returns the percentage increase with the difference and the formula.
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