What formula modes are included in this percentage calculator?
This page supports percentage-of, reverse percentage, percent change, increase by percent, and decrease by percent.
Free Percentage Calculator
Run percentage formulas for pricing, analytics, and everyday calculations with clear breakdowns.
Percentage Calculator
Run percentage-of, reverse-percent, percent-change, increase, and decrease calculations.
Why Use This Tool
This percentage calculator helps with pricing, budgeting, and reporting by handling common formulas like percent of a number, reverse percentage, and percent change in one place.
Advertisement
How to Use
- Choose a formula mode: percentage-of, reverse percentage, percent change, increase, or decrease.
- Enter values A and B, then set your preferred decimal precision.
- Run calculation and copy the formula breakdown plus result.
Examples
- What is 15% of 240? Use percent-of mode with A=15 and B=240.
- How much did sales grow from 80 to 125? Use percent-change mode.
- What original value gives 30 when 25% is applied? Use reverse-percentage mode.
Workflow Notes
- Use increase/decrease modes for pricing, forecasting, and budget adjustments.
- Use reverse-percentage mode to back-calculate rates from known totals.
- Keep units consistent (currency, quantity, etc.) before comparing values.
Common Use Cases
- Check discount impact before purchase decisions.
- Measure growth and decline in dashboards or monthly reports.
- Back-calculate rates from known totals in finance and operations.
Advertisement
FAQ
Can I control decimal precision?
Yes. Set decimal precision before running the calculation to match reporting requirements.
Does the tool support negative values?
Yes. Negative values are supported where mathematically valid for the selected formula mode.
Which mode should I use for growth over time?
Use percent-change mode when comparing start and end values from two periods.