Stacked discounts
Apply up to three reductions in sequence and see their true combined equivalent percentage.
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Shopping calculator · Free
Discount Calculator
Find the real sale price, combine stacked discounts correctly, and work backwards when a price or percentage is missing.
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Price details
Apply one or more discounts
Tax is calculated after the discount. Actual tax treatment can differ by location and product.
Price after discount
$96.00
20.00% effective discount
You save
$24.00
Tax / item
$0.00
Total · 1 item
$96.00
Discount trail
See how each reduction compounds
1
20% off $120.00
Saves $24.00 at this stage
$96.00
How it works
Every discount question in one focused workspace.
Choose the known values, then inspect the price trail instead of relying on a single unexplained answer.
- 01
Choose what is missing
Calculate the sale price, discover the discount rate, or work backwards to the original price.
- 02
Enter prices and discounts
Stack up to three sequential reductions, then add an optional quantity and tax rate.
- 03
Review the full saving
See the per-item price, amount saved, effective discount, tax, order total, and discount trail.
Clear shopping maths
Useful before checkout and after the receipt.
Reverse calculations
Recover a missing discount percentage or original price without rearranging the formula yourself.
Shopping totals
Include quantity and an optional post-discount tax rate to estimate the full purchase total.
Discount questions
Prices, percentages, and stacked reductions.
How do I calculate the price after a discount?+
Multiply the original price by one minus the discount rate as a decimal. A $120 item at 20% off costs $120 × 0.80 = $96.
Do I add stacked discounts together?+
No. Each discount applies to the already reduced price. A 20% discount followed by 10% produces a 28% effective discount, not 30%.
How do I find the discount percentage?+
Subtract the sale price from the original price, divide the saving by the original price, and multiply by 100.
How do I recover the original price?+
Divide the sale price by one minus the discount rate. If an item costs $80 after 20% off, $80 ÷ 0.80 gives a $100 original price.
Is sales tax applied before or after the discount?+
This tool applies tax after discounts. Actual taxable amounts and rules can vary by location, product, coupon type, and retailer.
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