When to use this calculator
Use this for a sale price followed by a coupon. The second discount applies to the already-reduced price.
Explore the percentage & ratio calculators for other questions in this topic. For a related calculation, use the Weighted Percentage Calculator: Combine two percentages using their actual group sizes.
PUTTING IT INTO PRACTICE
Successive Discounts: a worked example
The values below are an illustrative example, not a recommendation. Replace them with measurements or assumptions that match your question.
| Input | Example value |
|---|---|
| Original price | 100 |
| First discount (%) | 20 |
| Second discount (%) | 10 |
| Result | 72 currency units |
- Check the input labels and enter the example values above.
- Apply the relationship: Final price = price × (1 − first/100) × (1 − second/100).
- The result is 72 currency units, rounded for display.
How to interpret your result
Sequential discounts multiply; adding the percentages overstates the saving.
Choose the base before calculating. Percentage points compare two rates by subtraction, while percentage change divides a difference by an original value. Successive discounts apply one after another rather than adding together.
Frequently asked questions
Should I use percentage change or percentage points?
Use percentage change for relative movement from a baseline. Use percentage points for the direct difference between two percentage rates.
When is the successive discounts calculator useful?
Use this for a sale price followed by a coupon. The second discount applies to the already-reduced price.
How do I use the successive discounts calculator?
Enter original price, first discount (%), second discount (%). The result updates automatically. Use the units shown beside each input; the example values illustrate the method.
Which formula does this calculator use?
Final price = price × (1 − first/100) × (1 − second/100).
What should I check before using the result?
Sequential discounts multiply; adding the percentages overstates the saving.
How are results rounded?
Scalar numbers display up to six decimal places, with scientific notation for very large or small values. Text, fraction, date and schedule outputs use the format described on the tool. Intermediate calculations use JavaScript floating-point arithmetic. Keep sensible precision for your measurements.
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