What is 40% off $100?
Pay $60.00 — save $40.00
- Original price
- $100.00
- Discount (40%)
- −$40.00
- You pay
- $60.00
40% off $100 leaves a sale price of $60.00, a saving of $40.00. At a round $100 the saving equals the percentage, so 40% off is exactly $40 off and you pay $60. Use the calculator below to combine this with an extra coupon or add sales tax.
Discount & Sale Price Calculator
Find the sale price after one or two stacked discounts, add sales tax, and see exactly how much you save.
Calculator
Original: $80.00 · Sale price: $60.00
- Original$80.00
- Sale price$60.00
Good deal
25%A 25% effective discount saves $20.00, bringing the price to $60.00.
How it's calculated
The sale price is the original price multiplied by each discount factor in turn: sale price = original × (1 − d1 ÷ 100) × (1 − d2 ÷ 100). The amount saved equals original minus sale price. The effective discount percentage is (1 − combined multiplier) × 100, which is always less than d1 + d2 when both are positive. Sales tax is then added to the discounted price: final = sale price × (1 + tax ÷ 100). If only one discount is entered the second factor is 1 and drops out of the calculation.
Sources
- www.mathsisfun.com/percentage.html
- www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-fractions-decimals/cc-7th-percent-word-problems/a/discount-markup-and-commission-word-problems
Reviewed by the YouCalc Team · Last reviewed
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