| Discount % | Sale Price | Discount Amt | Profit / Item | Margin % |
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Running a sale or discount on your products can boost sales volume, but it directly reduces your profit per item. The key question is: does the increased volume make up for the lower margin? This calculator helps you answer that by showing your exact profit per item at any discount level, plus your total profit for the batch.
The formula is: Profit per Item = Sale Price - Your Cost. Your profit margin is (Profit / Sale Price) x 100%. Multiply profit per item by your expected quantity to see your total profit from the sale.
Start with a small discount (10-15%) and track conversion rates. If you normally sell 5 items/week and a 15% discount doubles that to 10/week, your total profit increases even though per-item profit drops. Always calculate your break-even point: the minimum quantity you need to sell at the discounted price to match your normal profit.
Remember that marketplace fees (Etsy's 6.5% transaction fee, eBay's ~13%, Shopee's commission) are calculated on the sale price, not the original price. So your actual fee savings from the discount are small compared to the revenue you lose.
Most successful Etsy sellers offer 10-20% off during sales events. A 10-15% discount attracts buyers without destroying your margins, while 20-25% works well for clearance or seasonal sales. Avoid going above 30% unless clearing old inventory.
On Etsy, eBay, and Shopee, marketplace fees are calculated on the actual sale price (the discounted price), not the original listing price. Your fee amount decreases slightly, but the discount is usually much larger than the fee savings.
Profit margin = ((Sale Price - Your Cost) / Sale Price) x 100. For example, if your item normally sells for $25, you offer 20% off (sale price $20), and your cost is $8, your margin is ($20 - $8) / $20 = 60%.
Yes — both platforms algorithmically favor discounted listings, showing them higher in search results. The key is to calculate your profit per item beforehand so you know your minimum acceptable discount and break-even quantity.
Most experienced sellers recommend maintaining at least a 20% profit margin even during sales. Below 10%, you're barely covering unexpected costs like returns or damaged items. If your margin drops below 10%, consider a smaller discount or raising your base price first.