20% discount
Input
¥5,000 with 20% off
Output
¥4,000 / save ¥1,000
Percentage Calculator
Choose a calculation type and enter the two values.
Calculators
Loading tool
What it helps with
- Check a sale price
- Measure a change between two values
- Find a part-to-total percentage
How to use
- Choose percent-of, ratio, change, or discount.
- Enter the two labeled values.
- Review and copy the result.
Examples
Good to know
- Results are arithmetic only and do not include tax, compound growth, or financial advice.
FAQ
- Can it show a decrease?
- Yes. Percentage change is negative when the after value is lower than the before value.
- What happens when the denominator is zero?
- The tool shows that the ratio or percentage change cannot be calculated.