How do stacked discounts work?
Each discount applies to the price left after the one before it. 20% off $100 is $80; an extra 10% off that is $72 — 28% off in total, not 30%. The order doesn’t change the result.
How do I find the percent off from two prices?
Divide the saving by the original price and multiply by 100. A $50 item on sale for $35 is (50 − 35) ÷ 50 × 100 = 30% off. The percentage calculator does this with “percent change”.
How to calculate a discount
- 1Turn the discount into a decimal: 25% → 0.25.
- 2Multiply the price by the decimal to get the saving ($80 × 0.25 = $20).
- 3Subtract the saving from the price for the sale price ($60).
- 4For an extra coupon, repeat on the sale price; then add sales tax on the final amount.
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Frequently asked questions
Is sales tax charged before or after a discount?
In most US states, sales tax is charged on the discounted price for store discounts and coupons. Some manufacturer coupons are taxed on the full price, depending on the state.
How do I find the original price from a sale price?
Divide the sale price by (1 − discount). If an item costs $60 after 25% off, the original price was $60 ÷ 0.75 = $80.
Is a bigger discount always a better deal?
Not necessarily. Compare final prices, not percentages — 50% off an inflated “original” price can cost more than 20% off a fair one elsewhere.
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