Three everyday percent tasks
- Discount — original price + discount % → sale price and amount saved
- Ratio — part ÷ whole → what percent is the part?
- Change — old value → new value → percent increase or decrease
Example: 30% off $80
| Value | |
|---|---|
| Original | $80 |
| Discount (30%) | −$24 |
| You pay | $56 |
Not for loans or compound interest
This tool handles quick percent math. For mortgages, compound savings, or BMI, use the Finance Calculator. For deeper examples, see the percent change and discount guide.