Discount Calculator
Calculate sale prices, markup, profit margin, and optimal discount strategies for any product
Discount Calculator
Calculate sale prices, profit margins, and pricing strategies
Product & Pricing
Regular retail price
Number of items
Your cost basis
Additional Costs
Sales tax percentage
Shipping & handling
Discount Formula
Discount Amount = Original Discount%
Discount% = (Original Sale) / Original 100
Example: $80 item at 30% off:
Sale Price = $80 0.70 = $56
Savings = $80 0.30 = $24
Markup vs. Margin Formula
Margin% = (Price Cost) / Price 100
Quick conversions:
Margin Markup: Cost / (1 Margin%)
Markup Margin: Markup% / (1 + Markup%)
50% markup = 33.3% margin
100% markup = 50% margin
Typical Profit Margins by Industry
| Business Type | Typical Net Margin | Notes |
|---|---|---|
| Grocery / Supermarket | 13% | Extremely thin volume-based |
| Restaurant (food cost) | 39% | After rent, labor, food cost |
| Clothing / Apparel Retail | 413% | Net; gross margin ~5060% |
| Electronics Retail | 25% | Low margin, high volume |
| E-commerce (general) | 020% | Wide range by niche |
| Software / SaaS | 1025%+ | High margin, low COGS |
| Jewelry / Luxury | 1248% | High markup products |
| Home Improvement / Hardware | 310% | Varies by category |
Frequently Asked Questions
What is the formula for calculating discount and sale price?
There are two key formulas: (1) Sale Price = Original Price (1 - Discount%). Example: $80 item with 25% off = $80 0.75 = $60. (2) Discount Amount = Original Price Discount%. Example: 25% of $80 = $20 off. To find what percentage discount was applied: Discount% = (Original Price - Sale Price) / Original Price 100. Example: ($80 - $60) / $80 100 = 25% off.
What is the difference between markup and margin?
Markup is calculated on cost: Markup% = (Selling Price - Cost) / Cost 100. Margin is calculated on selling price: Margin% = (Selling Price - Cost) / Selling Price 100. Example: Item costs $40, sells for $60. Markup = ($60-$40)/$40 = 50%. Margin = ($60-$40)/$60 = 33.3%. Retailers typically talk in margin; manufacturers often talk in markup. A 50% markup becomes only a 33% margin always confirm which metric is being used.
How do I calculate the maximum discount without losing money?
Maximum discount = your current profit margin. If an item costs $40 to produce and retails at $100 (60% gross margin), you can offer up to a 60% discount and still break even. In practice, maintain at least a 1015% margin after discounting to cover overhead. Calculate your floor price (minimum selling price) first: Floor Price = Cost (1 - Minimum Margin%). Example: $40 cost, 15% minimum margin: $40 / 0.85 = $47.06 floor price.
How does stacking discounts work in e-commerce?
Stacked discounts (multiple coupons or codes applied sequentially) compound, not add. A 20% off coupon followed by a 10% off coupon: Start at $100 20% off = $80 10% off $80 = $72. This is 28% total off (not 30%). This distinction matters for both customers and merchants. Always calculate the effective total discount from the final price vs original price: ($100-$72)/$100 = 28% effective discount.
What discount percentage is effective for driving sales without destroying margins?
Research on consumer psychology: 1020% discounts are perceived as "good deals" in most categories. 2530% is a strong promotional discount that drives significant volume. 4050%+ is perceived as clearance or brand-devaluing by some customers. The optimal discount depends on your category, customer price sensitivity (elasticity), inventory situation, and competitive pricing. BOGO (buy one get one) offers are effectively 50% off but psychologically outperform "50% off" labels in most A/B tests.