Ecommerce & Marketplaces
Margin and lot profit
The margin on the sell price and the profit across the lot.
The Formula
Margin = Net / Sell; Lot profit = Net x Quantity
The margin on the sell price and the profit across the lot.
| Symbol | Meaning | Unit | Notes |
|---|---|---|---|
| N | Net profit | currency | Profit per unit. |
| S | Sell price | currency | Price the unit sells for. |
| Q | Quantity | count | Units in the lot. |
What Each Symbol Means
Ncurrency
Net profit
Profit per unit.
Scurrency
Sell price
Price the unit sells for.
Qcount
Quantity
Units in the lot.
See It Worked With Real Numbers
A formula on its own does not tell you which number goes where. The how to calculate reselling profit page applies this equation to a concrete case, shows every intermediate step, and names the mistakes that produce a wrong answer even when the algebra is right.
Where This Formula Appears
This equation is the working core of How To Calculate Reselling Profit, filed under Business. Every number the guide produces comes from substituting into this one line.