Margin vs Markup Calculator for Reseller Pricing
Convert margin, markup, and pricing multipliers, then test whether marketplace fees, fixed fees, and seller-paid shipping still leave the target net margin.
Example output at $100 cost
After-Fee Pricing Check
Gross formula price leaves $72.40 after the fee, fixed fee, shipping, and COGS.
Net margin at formula price: 36.2%
Pricing Cheat Sheet - click any to use
How to Use the Margin vs Markup Calculator
Use this tool when you know either the margin you want or the markup you normally use, but need to translate it into a listing price. The calculator shows the equivalent percentage, multiplier, gross sale price, and after-fee target price.
- Pick the input you actually know. Choose margin if your goal is profit as a share of revenue. Choose markup if your field rule is cost plus a percentage.
- Enter real cost when you have it. Without cost, the calculator explains the relationship. With cost, it turns the formula into dollars.
- Add fees and seller-paid shipping. The after-fee panel shows whether your gross target still reaches the net margin you wanted.
- Copy the after-fee target price. Use it when platform fees or shipping labels are material to the listing.
Formula Reference
Margin = profit divided by sale price. A $20 cost sold for $40 has $20 gross profit and 50% gross margin.
Markup = profit divided by cost. A $20 cost sold for $40 has $20 gross profit and 100% markup.
Multiplier is the field shortcut: sale price divided by cost. A 2x multiplier is 100% markup and 50% gross margin before fees.
After-fee target solves for the price needed after selling fees, fixed fees, and seller shipping. Use it for the listing price check.
When the Gross Formula Is Not Enough
| Situation | Use This Output | Reason |
|---|---|---|
| Quick thrift rack check | Multiplier | Fast enough for first-pass sourcing before exact fee math. |
| Drafting the listing | After-fee target price | Shows the gross price needed to keep the target net margin after fees. |
| Free shipping listing | Seller shipping input | A label paid by the seller comes out of profit, not the buyer's comp price. |
Frequently Asked Questions
Is margin the same as markup?
No. Margin divides profit by sale price. Markup divides profit by cost. The same item can have 50% margin and 100% markup.
Why does the after-fee price differ from the gross target?
Marketplace fees, fixed charges, and seller-paid shipping reduce the amount left after the sale. The after-fee target solves for the gross price needed after those costs.
Can I use one multiplier for every category?
Use multipliers for fast screening, then check the actual comp, condition, shipping, and platform fee before listing. Heavy, slow, or high-fee items need a higher gross price to keep the same net margin.
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