What does that discount really come to?
Sale price from a percentage off, with a second discount and tax if you need them. Plus the % off between two prices, the original price before a sale, and the real value of buy-2-get-1-free.
What you get
- Sale price, saving and tax
- Stacked discounts, worked out properly
- Buy X get Y free as a % off
Planning a sale? Check the margin with the profit margin calculator.
Sale price
You pay
Rs 2,000
You save
Rs 500
How much % off is it?
25% off
What was the original price?
Rs 2,000
Buy X, get Y free
33.33% off
The same as this discount on every item, when all items cost the same.
Running a sale? Check it still leaves a profit with the profit margin calculator. Nothing you type is stored.
20% and then 10% off is 28% off, not 30%.
The second discount comes off the already reduced price, so stacked discounts are always worth less than they add up to. Shoppers rarely notice; your margin does. Check the real number before you print the sign.
- How do I calculate a discount?
- Multiply the price by the discount percentage and divide by 100 to get the saving, then subtract it. 20% off 2,500 is 2,500 × 20 ÷ 100 = 500, so the sale price is 2,000.
- How do stacked discounts work?
- Each discount applies to the price after the one before. 20% then 10% off 1,000 is 1,000 × 0.8 × 0.9 = 720, a total of 28% off, not 30%.
- How do I find the original price from a sale price?
- Divide the sale price by (1 − discount ÷ 100). If something costs 1,600 after 20% off, the original was 1,600 ÷ 0.8 = 2,000.
- What discount is buy 2 get 1 free?
- You get 3 items for the price of 2, so it is 1 ÷ 3 = 33.3% off each item when they cost the same. Buy 1 get 1 free is 50% off.
- Need percentages for other things?
- The percentage calculator handles % change, increases and reverse percentages, with the working shown.
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