Discount Calculator
Calculate sale prices, discount amounts, and percentage savings. Find the original price from a sale price, or compute what % discount you're getting.
Sale Price
$79.99
Original Price
$99.99
Discount %
20.00%
You Save
$20.00
Sale Price
$79.99
Savings Breakdown
Save 20.0% ($20.00)Pay $79.99
Bulk Savings
| Qty | Subtotal | Total Savings | You Pay |
|---|---|---|---|
| 1 | $99.99 | $20.00 | $79.99 |
| 2 | $199.98 | $40.00 | $159.98 |
| 3 | $299.97 | $59.99 | $239.98 |
| 5 | $499.95 | $99.99 | $399.96 |
| 10 | $999.90 | $199.98 | $799.92 |
How to Use Discount Calculator
- 1Enter the original price and the discount percentage.
- 2See the discounted price and savings amount instantly.
- 3Or enter the sale price to find what % off it is.
Zenovay
Privacy-first analytics for your website
Understand your visitors without invasive tracking. GDPR compliant, lightweight, and powerful.
Related Tools
Color ConverterConvert colors between HEX, RGB, HSL, and CMYK formats. Live preview with color picker.
Unit ConverterConvert between units of length, weight, temperature, area, volume, speed, and more.
Number Base ConverterConvert numbers between binary, octal, decimal, and hexadecimal bases.
Unix Timestamp ConverterConvert between Unix timestamps and human-readable dates. Show ISO 8601, UTC, local time, and relative time.
Frequently Asked Questions
How do I calculate a discount?▾
Discount amount = Original price × Discount rate. Sale price = Original price − Discount amount. Examples: 20% off $50 → $50 × 0.20 = $10 discount → $40 sale price. 30% off $120 → $120 × 0.30 = $36 discount → $84 sale price. 15% off $89.99 → $89.99 × 0.15 = $13.50 discount → $76.49 sale price. Quick mental math: 10% off = move decimal one place left. 25% off = divide by 4. 50% off = divide by 2. 33% off ≈ divide by 3. 20% off = 10% × 2.
How do I find the original price from a sale price?▾
If you know the sale price and discount percentage: Original price = Sale price ÷ (1 − Discount rate). Example: Something costs $75 after a 25% discount. Original price = $75 ÷ (1 − 0.25) = $75 ÷ 0.75 = $100. Another example: $85 after 15% off → $85 ÷ 0.85 = $100. Common mistake: people add the discount % back to the sale price. That's wrong. $75 + 25% of $75 = $75 + $18.75 = $93.75 ≠ $100. Use the formula above for correct reverse calculation.
How do I find what percentage off something is?▾
Discount percentage = (Original price − Sale price) ÷ Original price × 100. Example: Original $80, sale price $60. Discount = (80 − 60) ÷ 80 × 100 = 20 ÷ 80 × 100 = 25% off. Another: Regular $249.99, now $199.99. Discount = (249.99 − 199.99) ÷ 249.99 × 100 = 50 ÷ 249.99 × 100 = 20% off. Shopping tip: always calculate the actual dollar saving AND the percentage — a 50% off sticker on a $5 item saves $2.50 while a 10% discount on a $300 item saves $30.
How does stacking discounts work?▾
Stacked discounts don't simply add — they compound. Example: 20% off, then an additional 10% off. First: $100 × (1 − 0.20) = $80. Then: $80 × (1 − 0.10) = $72. Total saved: $28 (not 30% of $100 = $30). Formula: Final price = Original × (1 − d1) × (1 − d2) × ... Total effective discount = 1 − (1 − d1) × (1 − d2). For 20% + 10%: 1 − 0.8 × 0.9 = 1 − 0.72 = 28% effective discount. Marketing often presents stacked discounts to make them sound better than a single equivalent discount.
What is the difference between markdown and discount?▾
Discount: a reduction from the listed/regular price. Applied at checkout, often as a percentage. Can be temporary or promotional. Markdown: a permanent reduction in the listed retail price. Happens when a retailer decides the item's value has decreased. Used in inventory clearance. In retail accounting: Markup is the difference between cost and retail price. Margin is the profit as % of selling price. Markdown is the reduction in retail price. Example: Item costs $40, retails at $80 (100% markup, 50% margin). After 25% markdown, sells for $60. The markdown reduced both margin and markup.