Discount calculator
Find your saving and final price. Compare discount rates, check the calculation and try another price.
Result
Example answer40
20% off 50 leaves 40. You save 10.
Choose how many decimal places to show.
How we worked it out
50 × 20 ÷ 100 = 10 saved; 50 − 10 = 40 final price
Compare the saving and final price
Saving: 10. Final price: 40.
Keep 80% of the original price. These amounts exclude separate taxes, delivery charges and fees.
Compare discounts on the starting price
Compare these single discounts on the original price of 50. Editing the calculator does not change this reference table.
| Discount | Saving | Final price |
|---|---|---|
| 2.5 | 47.5 | |
| 5 | 45 | |
| 7.5 | 42.5 | |
| 10 | 40 | |
| 12.5 | 37.5 | |
| 15 | 35 | |
| 25 | 25 |
Worked examples to try
Worked example with the original numbers
How to calculate this answer
Original − (original × discount ÷ 100)
- 50 × 20 ÷ 100 = 10 saved
- 50 − 10 = 40 final price
Check: 40 + 10 = 50
A quick way to check it
To find the final price in one step, multiply the original price by (1 − discount ÷ 100). For a 20% discount, the multiplier is 0.8.
What the numbers mean
Compare the amount saved with the price you actually pay. A second discount applies to the already reduced price: 20% off followed by 10% off keeps 0.8 × 0.9 = 0.72 of the original, which is a combined 28% saving. Delivery fees and tax are separate adjustments.
A mistake to avoid
The discount amount is the saving, not the final price. This calculation excludes any tax, delivery charge or other adjustment.
Related calculations to try
Use the percentage calculator for a different type of question, apply one percentage to a list, or compare several percentage rates.
Questions about this example
How do I work out a discount?
20% off 50 leaves 40. You save 10. To find the final price in one step, multiply the original price by (1 − discount ÷ 100). For a 20% discount, the multiplier is 0.8.
Can I change the numbers?
Yes. Change either input and the answer updates automatically. Reset example brings back the starting numbers. The explanation below the calculator still refers to the original question.
Why might another answer look slightly different?
Decimal settings affect display rounding. A ≈ sign marks a rounded result, and very small values may round to zero. This tool uses ordinary browser arithmetic rather than exact decimal arithmetic. Check the formula and baseline before comparing results.
Read our calculation methodology, report an error, or browse all worked percentage examples.