About the Discount Calculator
Shops advertise discounts as percentages, but what you really want to know is the price you will pay at the checkout. This discount calculator turns any percentage off into a final price and shows the amount you save.
It is useful for sales, coupon codes, clearance items and comparing offers between stores. Everything is calculated in your browser, so nothing you type is sent anywhere.
How to use it
- Enter the original (regular) price of the item.
- Enter the discount percentage, for example 25 for 25% off.
- Press Calculate.
- Read the final price and the amount you save.
Formula
Savings = Original price × Discount ÷ 100. Final price = Original price − Savings.
Example
A jacket costs 80 and is 25% off. Savings = 80 × 25 ÷ 100 = 20, so the final price is 80 − 20 = 60.
Common mistakes to avoid
The most frequent error is adding a discount to the price instead of subtracting it. A 20% discount on 100 gives 80, not 120. Another mistake is confusing the discount with the amount you pay: if a shop offers 30% off a 100 item, you save 30 and pay 70.
Stacked discounts do not add up. 20% off followed by an extra 10% off leaves you paying 72% of the original price, which is a 28% total discount rather than 30%. Check the order of offers before you assume the total.
Comparing two offers fairly
When two shops offer different discounts, compare the final prices rather than the percentages. A 40% discount on a 150 item leaves 90, while 25% off a 100 item leaves 75. The second deal is cheaper even though its percentage is smaller.
Also check whether tax or delivery is added at checkout. Tax is usually added after the discount, so use the Sales Tax Calculator on the final price if you need the total you will pay.
Is it really a good deal?
A big percentage does not always mean a big saving. 50% off an item that was overpriced to begin with can cost more than 20% off at another shop. Compare the final prices, not the percentages, and check whether delivery charges or GST are added at the checkout.
Also watch out for "flat ₹500 off on orders above ₹2,999" style offers. Enter the discount as a percentage of your actual basket to compare it fairly with a percentage offer elsewhere.
Frequently asked questions
How do I calculate two discounts in a row?
Apply them one after the other, not added together. For 20% off and then an extra 10% off, first calculate 20% off, then use the new price as the original price and take 10% off. The result is 28% off in total, not 30%.
Is sales tax included?
No. The calculator works on the price you enter. If GST is added at the checkout, use the GST Calculator on the final price.
What does "percent off" mean?
It means the price is reduced by that share of the original price. 30% off a price of 50 removes 15, leaving 35.
Can I find the original price from the sale price?
Yes. Divide the sale price by (1 − discount ÷ 100). A sale price of 60 after 25% off means an original price of 60 ÷ 0.75 = 80.