Finance

Double Discount Calculator

Apply two successive discounts to a price.

Calculated Output

Final price ($) 72

Total saved ($) 28

Effective discount (%) 28

Formula: final = price × (1 − d1) × (1 − d2)

Step-by-Step Breakdown

1. Values used:

2. Original price = 100 $

3. First discount = 20 %

4. Second discount = 10 %

6. Final price = 72$

7. Total saved = 28$

8. Effective discount = 28%

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The math behind it

final = price × (1 − d1/100) × (1 − d2/100). 20% then 10% = 28% off, not 30%.

$100, 20% then 10% → $72 (28% off).

Why not 30%?

The second discount applies to the already-reduced price.