Percent Off Calculator Calculate sale prices instantly — with bundle deals, stacked discounts, and tax-inclusive totals. ...
Percent Off Calculator
Calculate sale prices instantly — with bundle deals, stacked discounts, and tax-inclusive totals.
Formula for % off**:
$$\text{Sale Price} = \text{Original} \times \left(1 - \frac{\%\ \text{Off}}{100}\right)$$
Example: $100 item, 30% off: $100 × (1 − 0.30) = **$70** → You save **$30** (30% off)
⚠️ “75% off” trap**:
- First 50% off: $100 → $50
- Then another 50% off: $50 → $25
- Total discount = $75 → **75% off**, correct
But retailers sometimes say “75% off MSRP” when MSRP is inflated — always compare to *actual* market price.
✅ BOGO 50% Off** = 25% off the *bundle* (not 50% per item!)
Example: Two $50 shirts: • Pay full for first: $50 • 50% off second: $25 • Total: $75 for $100 value → **25% off**
✅ Buy 2, Get 1 Free** = 33.3% off bundle
• 3 shirts @ $50 = $150 value • Pay for 2: $100 • Total: $100 for $150 → **33.3% off**
📉 Pro Tip: Always calculate **cost per unit** — e.g., $75/2 = $37.50/shirt vs. $100/3 = $33.33/shirt.
Correct stacking order** (per IRS & major retailers):
- % off first (applies to full price)
- $ off coupon (applies to discounted price)
- Loyalty % (applies to post-coupon price)
- Tax (applies to final pre-tax total)
Example: $100 item, 20% off + $10 + 5% loyalty:
- 20% off: $100 → $80
- −$10: $80 → $70
- 5% off: $70 × 0.95 = **$66.50**
- +8% tax: $66.50 × 1.08 = **$71.82**
⚠️ Some stores apply $ off *before* % — always ask at checkout!
➡️ Single Item
Enter original price and % off. Add tax for total checkout cost.
➡️ Bundle Deal
Model BOGO, B2G1, or flat bundle discounts — see per-item value.
➡️ Stack Discounts
Combine % off, coupons, and loyalty for true final price.
You’ll get:
- Sale price before/after tax
- “You Save” amount and %
- Effective discount rate (critical for bundle analysis)
- Visual price breakdown bar
Note: Assumes standard stacking order. Some retailers vary.