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Discount Calculator
Calculate the final price after a percentage discount and see how much you save.
Quick answer
To calculate a discount, multiply the original price by the discount percentage and divide by 100 to get the amount you save, then subtract it from the price. 25% off $80 saves $20, so you pay $60. The calculator does both steps as you type.
Step by step
How to use the Discount Calculator
01
Enter the original price.
02
Enter the discount percentage.
03
See the discount amount and final price.
Formula
Final Price = Original × (1 − Discount% / 100)Worked examples
Final price after common discounts
| Original price | 10% off | 20% off | 25% off | 30% off | 50% off |
|---|---|---|---|---|---|
| $20.00 | $18.00 | $16.00 | $15.00 | $14.00 | $10.00 |
| $50.00 | $45.00 | $40.00 | $37.50 | $35.00 | $25.00 |
| $80.00 | $72.00 | $64.00 | $60.00 | $56.00 | $40.00 |
| $100.00 | $90.00 | $80.00 | $75.00 | $70.00 | $50.00 |
| $150.00 | $135.00 | $120.00 | $112.50 | $105.00 | $75.00 |
| $250.00 | $225.00 | $200.00 | $187.50 | $175.00 | $125.00 |
Good to know
How to work out a percentage off in your head
Find 10% by moving the decimal point one place left, then scale it. 10% of $70 is $7, so 30% off is $21 and the sale price is $49. For 25%, divide by four; for 50%, halve the price. The calculator is there for the awkward numbers like 17% off $63.40.
Discount versus final price
A 30% discount means you pay 70% of the price, not 30%. A quick check: the final price should always be the original price multiplied by (1 − discount ÷ 100). Sales tax is normally charged on the discounted price, so calculate the discount first and add tax afterwards.
FAQ
Frequently asked questions
Can I use a fixed amount instead of a percentage?
Use the Savings Calculator for a fixed discount amount.
How do I calculate 20% off?
Multiply the price by 0.20 to find the saving and subtract it, or multiply the price by 0.80 directly. 20% off $45 is $45 × 0.80 = $36.
How do I find the original price from a sale price?
Divide the sale price by (1 − discount ÷ 100). An item that costs $60 after 25% off was $60 ÷ 0.75 = $80.
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Guide
How Do You Calculate a Discount?
The discount formula, worked examples for 10%–50% off, how to find the original price from a sale price, and how stacked discounts really add up.
Read the guideGuide
How Do You Calculate a Percentage of a Number?
The percentage formula, step-by-step examples for tips, discounts and scores, plus how to find what percent one number is of another.
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