Discount Calculator
Sale price and savings from original price and discount %.
How it works
Sale price = original × (1 − discount ÷ 100)
A discount is a percentage off the original price. Savings = original × discount ÷ 100.
FAQ
What does "X% off" mean?
"30% off" means paying 70% of the original price, i.e. a 30% discount.
Worked example
List price 300 at 20% off: 300 × 0.8 = 240, saving 60.
Stack another 10% off: 300 × 0.8 × 0.9 = 216 — a 28% total discount, not 30%.
Notes and limitations
Discounts multiply; they do not add. Watch for "raise the price, then discount" — compare against the historical price rather than trusting the label.