5% + 10% Off Calculator
5% off + 10% off = 14.5% total — not 15%. See the math and the exact price for any amount.
$
%
%
Final Price
$85.50
Real % Off
14.5%
If 0% Simply Added
$85.00
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Cashback Card + Store Coupon
Combining a 5% cashback credit card with a 10% store coupon is a favorite frugal-shopping strategy. But 5% + 10% totals 14.5%, not 15%. On a $200 grocery run, you'd expect $30 in net savings. You actually get $29. Small on one trip — but over a year of stacking, the gap adds up.
Step-by-Step on $100
Formula: Price × (1 − 5/100) × (1 − 10/100)
$100 × 0.95 = $95.00 (after 5% off)
$95.00 × 0.90 = $85.50 (after another 10% off)
Real discount: 14.5% — not 15%
Quick Reference: 5% + 10% Off
| Original | After 5% off | After 10% more off | You save |
|---|---|---|---|
| $20 | $19 | $17.10 | $2.90 |
| $50 | $47.50 | $42.75 | $7.25 |
| $100 | $95 | $85.50 | $14.50 |
| $150 | $142.50 | $128.25 | $21.75 |
| $200 | $190 | $171 | $29 |
| $300 | $285 | $256.50 | $43.50 |
| $500 | $475 | $427.50 | $72.50 |
| $1000 | $950 | $855 | $145 |
Frequently Asked Questions
No. 5% then 10% gives the same final price as 10% then 5%. Multiplication is commutative: (1−5/100)×(1−10/100) = (1−10/100)×(1−5/100).
The second discount applies to the already-discounted price, not the original. After 5% off, you have 95% of the price left. Taking another 10% off that gives 95% × 0.9 = 85.5% remaining — so -70.5% more than if the discounts truly stacked to 15%.
On any purchase, the gap = Price × 5 × 10 / 10,000. For $100: $0.50. For $500: $2.50. The larger the purchase, the more meaningful the difference.
Yes. Multiply a third factor: Price × (1−5/100) × (1−10/100) × (1−D3/100). Three 10% discounts would equal 27.1% total — not 30%.
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