Discount Calculator
Find the final price after a discount, the original price before a discount, or the percentage that was taken off. It works in any currency, including PKR.
Prices are worked out before any sales tax or delivery charge. If a shop adds tax, it is usually applied after the discount.
How it works
A discount takes a percentage off the original price. The calculator uses the same simple rules in three directions, so you can start from whichever numbers you have on the price tag.
Formulas
- Final price: original price − (original price × discount ÷ 100)
- Original price: sale price ÷ (1 − discount ÷ 100)
- Discount percentage: (original price − sale price) ÷ original price × 100
- Amount saved: original price − sale price
Steps to use it
- Choose what you want to find.
- Enter the two numbers the boxes ask for.
- Press Calculate to see the answer and how much you save.
Examples
| Question | Input | Answer | You save |
|---|---|---|---|
| Final price | 5,000 with 20% off | 4,000.00 | 1,000.00 |
| Final price | 2,499 with 15% off | 2,124.15 | 374.85 |
| Original price | Sale price 3,200 after 20% off | 4,000.00 | 800.00 |
| Discount percentage | Was 12,000, now 9,000 | 25% | 3,000.00 |
Common uses
- Checking the real price in a sale before you buy.
- Working out what a shop’s original price was.
- Comparing two offers that show the discount in different ways.
- Setting your own sale price if you sell things.
Frequently asked questions
How do I take a percentage off a price?
Multiply the price by the discount and divide by 100 to get the amount off, then subtract it from the price. A 20% discount on 5,000 takes off 1,000, leaving 4,000.
How do I find the original price from the sale price?
Divide the sale price by 1 minus the discount as a decimal. If you paid 3,200 after 20% off, divide 3,200 by 0.8 to get 4,000.
Why can’t I find the original price at 100% off?
A 100% discount makes the sale price zero for any original price, so the original cannot be worked out from it.
Are two discounts the same as adding them together?
No. Take 20% off and then 10% off, and the total is 28% off, not 30%, because the second discount applies to the already reduced price. Run the calculator twice, using the first result as the next starting price.
Is this financial advice?
No. It is a calculation tool. See our Terms and Disclaimer and How We Test pages.