Discount Calculator
Calculate sale prices, discount percentages, and savings. See how stacked discounts work, add sales tax, and compare different discount scenarios.
Calculate
Prices
$
$
Additional Options
You Pay
$75.00
You save $25.00 (25.0% off)
$100.00
Original Price
25.0%
Discount
$25.00
You Save
Price Breakdown
| Original Price | $100.00 |
| Discount (25.0%) | -$25.00 |
| Sale Price | $75.00 |
| Sales Tax (8.25%) | +$6.19 |
| Total with Tax | $81.19 |
Discount Comparison
| Discount | Sale Price | You Save |
|---|---|---|
| 10% | $90.00 | $10.00 |
| 15% | $85.00 | $15.00 |
| 20% | $80.00 | $20.00 |
| 25% | $75.00 | $25.00 |
| 30% | $70.00 | $30.00 |
| 40% | $60.00 | $40.00 |
| 50% | $50.00 | $50.00 |
| 75% | $25.00 | $75.00 |
Stacked Discounts
When discounts are applied sequentially (not added together)
| First | + Second | Final Price | = Equivalent |
|---|---|---|---|
| 20% | 10% | $72.00 | 28.0% off |
| 25% | 10% | $67.50 | 32.5% off |
| 30% | 10% | $63.00 | 37.0% off |
| 20% | 15% | $68.00 | 32.0% off |
| 25% | 15% | $63.75 | 36.3% off |
| 30% | 20% | $56.00 | 44.0% off |
Discount Tips
Stacked Discounts
20% off + 10% off ≠ 30% off! The second discount applies to the already-reduced price. 20% + 10% = 28% total discount.
Quick Mental Math
10% off: Move decimal left
20% off: 10% × 2
25% off: Divide by 4
50% off: Divide by 2
Is It Really a Deal?
Compare the sale price to what you'd normally pay, not the "original" price. Retailers often inflate original prices to make discounts look bigger.
Frequently Asked Questions
Discount Formulas
- Sale Price: Original × (1 - Discount%/100)
- Discount %: (Original - Sale) ÷ Original × 100
- Original Price: Sale ÷ (1 - Discount%/100)
- Savings: Original - Sale
Quick Mental Math
| Discount | Quick Method |
|---|---|
| 10% | Move decimal left |
| 20% | 10% × 2 |
| 25% | Divide by 4 |
| 33% | Divide by 3 |
| 50% | Divide by 2 |
Stacked Discounts
When discounts are applied one after another (not added):
- 20% + 10% = 28% total (not 30%)
- 25% + 10% = 32.5% total (not 35%)
- 30% + 20% = 44% total (not 50%)
Shopping Tips
- Compare sale price to regular price elsewhere
- Check if "original price" is inflated
- Calculate price per unit for bulk deals
- Factor in shipping when comparing online