How to use the Discount Calculator
- Enter the original price.
- Enter the discount percentage.
- If there's an extra discount on top, enter it too.
- Read the sale price, the amount saved and the true total discount.
What does this tool do?
Stores often advertise “30% off, plus an extra 20%”. That isn't 50% off: the second discount applies to the already-reduced price, so the real total is 44%. This calculator applies discounts in order and shows the true figure.
Why use it?
- Shows the real total discount on stacked deals.
- Works in any currency.
- Quick enough to use in a shop on your phone.
Example: stacked discounts
A $120 jacket is 25% off, with an extra 10% at checkout. After 25%: $90. After the extra 10%: $81. You save $39, a total discount of 32.5% — not 35%.
The formula
Privacy
The calculation happens instantly in your browser. The numbers you enter are not sent to our servers or saved. There's no account to create and nothing to install.
Frequently asked questions
How do I calculate percent savings?
Subtract the price you paid from the original price, divide by the original price and multiply by 100. From $80 down to $56 saves $24, and $24 ÷ $80 × 100 = 30%.
Is 30% off plus an extra 20% off the same as 50% off?
No. The extra 20% comes off the already-reduced price, so the real total is 44%: a $100 item goes to $70, then to $56.
How do I find the original price from a sale price?
Divide by (1 − discount). A $60 item that's 25% off was originally $60 ÷ 0.75 = $80.
Does the order of two discounts matter?
No. 30% off followed by 20% off gives the same final price as 20% off followed by 30% off, because both multiply the price by 0.7 and 0.8. Either way the total saving is 44%, not 50%.
Last reviewed by the M2Toolkit team.