💰 Discount Calculator

Percentage off (e.g., 20% off) and amount off (e.g., $20 off) are most common. Some promotions use stacked discounts or conditional deals.

Use p = (List − Sale) / List × 100. Example: List $120, Sale $90 → p = 25%.

Sale = List × (1 − 10/100). For $45 → $40.50.

Multiply by 0.8. Example: $200 × 0.8 = $160.

Multiply by 0.7. Example: $80 × 0.7 = $56.

They apply sequentially: Sale = List × (1 − 0.20) × (1 − 0.15). Effective % is less than 35%.

List = Sale / (1 − p/100).

Typically, discounts apply before tax. Our calculator shows both before-tax and after-tax totals when tax is enabled.