Shopping discount math
Quickly verify Black Friday deals, calculate actual savings, reverse-engineer original prices, or add sales tax for final checkout totals.[web:537][web:538][web:555]
Core formulas
- Sale price:
Original × (1 - Discount%/100)[web:537] - Discount $:
Original × (Discount%/100)[web:538] - Original from sale:
Sale / (1 - Discount%/100)[web:555]