Discount calculator
A sale tag is just a percent off the was-price. Type the original and the off-percent. You get the now-price and what you save. Tax, if any, belongs on the discounted amount — take “now” over to the sales-tax tool.
$
%
- Now
- $0.00
- You save
- $0.00
- Percent applied
- 20%
Enter an amount to copy a summary.
Tipping customs and tax rates vary by place and by type of service. TipSplit is a calculator — not financial, tax, or etiquette advice.
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FAQ
How does a percent-off calculator work?
Save = original × (off% ÷ 100). Now = original − save. 25% off $80 is $20 off and $60 now. We clamp the off-percent to 0–100 so “150% off” cannot go negative without you noticing.
Is “percent off” the same as “percent of”?
No. 20% off $50 is a $10 discount (you pay $40). 20% of $50 is $10 as a part, with no “you pay” story. Use this page for sale tags. Use the percentage page for raw parts.
How do stacked discounts work?
Apply them in order on the remaining price, not by adding the percents. 20% off then 10% off is 0.8 × 0.9 = 28% off, not 30%. This MVP does one percent at a time. Run it twice if a tag is stacked.
What about tax on a discounted price?
Most US sales tax is on the discounted selling price, not the was-price. Calculate “now,” then take that number to the sales-tax tool. Some jurisdictions differ; we are not your county.
Do coupons that say “$10 off” belong here?
Not as a percent. Subtract $10 yourself, or treat $10 as the save and skip the percent. A coupon that says “20% off up to $10” is two constraints — compute 20% off, then cap the save at $10.
Why does a 50% off then 50% off tag feel like a lie?
Because it is 75% off the original, not free. Each 50% is half of what is left. The calculator will happily do each step. Read the tag twice before you pay.