80% Off $100 — Sale Price
Original$100.00
80%
Sale Price$20.00
✓ You save $80.00
80% off $100 is $20.00. You save $80.00.
How the discount is calculated
Discount amount = $100 × 80% = $80.00. Sale price = $100 − $80.00 = $20.00.
Sale price with tax
+ 5% tax$21.00
+ 10% tax$22.00
+ 20% tax$24.00
Calculate any discount
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