Discount Calculator
Stacked '30% off + extra 20%' is not 50% off — second discounts apply to already-reduced prices. Compute honestly.
Final price
$139.44
- After discounts
- $139.44
- You save
- $109.56 (44% effective)
How the Discount Calculator works
The calculation follows the standard method used across the US — no shortcuts, no hidden assumptions. Here is exactly what happens behind the scenes:
Frequently Asked Questions
How do stacked discounts combine?
Multiplicatively: 30%+20% leaves 0.7×0.8 = 56% of original — a real 44% off, not half.
'Extra $X off' coupons?
Subtract fixed amounts after percentages for best results — order changes outcomes; retailers apply whichever sequence favors them.
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