Home › Free Tools › Free Discount Calculator (Stacked & Double Discounts)
Work out the sale price and how much a customer saves — including double (stacked) discounts, where a second percent-off applies on top of the first — instantly.
A discount calculator answers two everyday questions fast: what will the customer actually pay, and how much are they saving? Enter the original price and the percentage off, and you get the discount amount and the final price right away — handy at the counter, when building a promotion, or when a customer asks “what’s it after the 20% off?”
This tool also handles stacked discounts. If you run a promotion where a second discount applies on top of the first (say 20% off, then an extra 10% for members), enter both and it applies them in sequence rather than simply adding them — because 20% then 10% is not the same as 30% off. The result shows the total savings and the final price after both.
The math: final price = original × (1 − discount ÷ 100). For a second stacked discount, the same formula is applied again to the already-reduced price. Knowing your true after-discount price matters for margin — pair this with the markup calculator to make sure a promotion still leaves you a profit.
Worked example: a $100 repair with 20% off drops to $80. Add an extra 10% member discount and the 10% comes off the $80, not the $100 — so the final price is $72 and the customer saves $28, an effective discount of 28%, not 30%. If you genuinely want to give 30% off, a single 30% discount lands at $70. That $2 gap per sale sounds small, but across 50 discounted jobs a week it is $100 of margin — which is exactly why advertising “20% + 10%” instead of “30% off” is standard retail practice.
StandupCRM helps repair shops run and track promotions that actually pay off; this free calculator is the quick version for one-off pricing.
Multiply the price by the discount percentage to get the savings, then subtract it. This tool does it as you type.
The second discount applies to the already-reduced price, not the original — so 20% then 10% is about 28% off, not 30%.
Apply the first percentage to the original price, then apply the second percentage to the reduced price. A $100 item at 20% then 10% goes to $80, then $72 — a 28% effective double discount.
Multiply the price by 0.20 to get the savings, then subtract — or just multiply by 0.80 for the final price. 20% off $45 is $9 off, so you pay $36.
Yes, free with no signup.
No — it runs entirely in your browser.
StandupCRM gives repair shops Google Ads landing pages, lead capture, and a CRM dashboard — plus free tools like this to bring customers in.
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