Discount calculator
Sale price = original price × (1 − discount rate). With a second discount, the second rate applies to the already reduced price, so 20% off and then 10% off is 28% off in total, not 30%.
Worked example
- 50.00 with 20% off → 40.00, you save 10.00.
- 20% off and then 10% more → 36.00.
Questions people ask
Is 20% off plus 10% off the same as 30% off?
No. The second discount applies to the already reduced price, so together they make 28% off.
How are cents rounded?
The sale price is rounded to the nearest cent.