Discount Calculator
Calculate sale price and find discount percentage
Discount Calculator
Final Price
Reverse: Find Discount %
FAQ
How is the sale price calculated?
Original price × (1 - discount/100). A 20% discount on $100 is $100 × 0.8 = $80.
How do I find the discount percentage?
(Original - Sale) ÷ Original × 100. If $100 drops to $80, that's (100-80)/100 × 100 = 20% off.
How do stacked discounts work?
They apply sequentially. 20% then an extra 10% is 0.8 × 0.9 = 0.72, meaning 28% off — not 30%.
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