Discount Breakdown
The discount amount is calculated first, then subtracted from the original price to find the sale price.
Discount Amount = Original Price × Discount Rate ÷ 100
= $100 × 20 ÷ 100 = $20.00
Sale Price = $100 − $20 = $80.00
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Discount Calculator
Calculate the sale price, total savings, and discount amount in seconds.
Enter an original price and discount percentage to see the breakdown.
01
Calculate Your Discount
Enter the original price and discount rate.
YOUR RESULT
Final Sale Price
Original price = $100.00; discount = 20%
$80.00You save $20.00.
Discount amount: $20.00
✓VerifiedCalculation
Formula Used
Use these formulas to calculate the discount and final amount.
Discount = Original Price × Discount % ÷ 100Sale Price = Original Price − Discount
$100 × 20 ÷ 100 = $20.00; $100 − $20 = $80.00
A 0% discount leaves the price unchanged; a 100% discount makes the sale price zero.
Step-by-Step Solution
Follow the calculation using the values you entered.
1
Identify the original price and discount rateOriginal price = $100; discount = 20%
2
Calculate the discount amount$100 × 20 ÷ 100 = $20
3
Subtract the discount from the original price$100 − $20 = $80
LEARN THE CONCEPT
What Is a Discount Calculator?
A discount calculator tells you how much money you save when a percentage discount is applied to an original price. It also calculates the final sale price after the discount. It is useful when shopping online, comparing promotions, checking store sales, or planning a budget.
For example, if an item costs $100 and has a 20% discount, you save $20 and pay $80 before any applicable taxes, shipping charges, or additional fees. The displayed sale price may differ if a retailer applies tax before or after the discount.
FORMULA EXPLAINED
How to Calculate a Discount
Convert the discount percentage into a decimal by dividing it by 100, multiply it by the original price, and subtract the result from the original price.
Discount Amount=Original Price × Discount Percentage ÷ 100Sale Price=Original Price − Discount Amount
Worked Example
A $100 item with 20% off
Discount amount: $100 × 20 ÷ 100 = $20
Sale price: $100 − $20 = $80
You save $20 and pay $80 before taxes or fees.Discount Examples
Related Discount Formulas
Discount amountOriginal Price × Discount % ÷ 100
Sale priceOriginal Price − Discount Amount
Discount percentage(Discount Amount ÷ Original Price) × 100
Original priceSale Price ÷ (1 − Discount Rate ÷ 100)
The original-price formula requires a discount rate below 100%.
Discount Calculator FAQs
How do I calculate a discount?
Multiply the original price by the discount percentage and divide by 100. Subtract that discount amount from the original price to get the sale price.
What is 20% off $100?
20% of $100 is $20, so the final price is $80 before applicable taxes and fees.
Does the calculator include sales tax?
No. This calculator calculates the discount and sale price before sales tax, shipping, or other fees.
Can I calculate a 100% discount?
Yes. A 100% discount means the entire original price is discounted, so the sale price is zero.
Can the discount be more than 100%?
No. This calculator accepts discount rates from 0% to 100%, inclusive.
How do I find the original price from a discounted price?
Divide the sale price by (1 − discount rate ÷ 100). This formula works when the discount is less than 100%.