Enter unit cost and the margin you want. You get the retail price, the markup it equals, the wholesale price, and what is actually left per unit after fees and ad spend.
Division, not multiplication. A product costing $38.70 priced for a 55 percent margin is $38.70 divided by 0.45, which is $86.00.
The tempting arithmetic is cost times 1.55, giving $59.99. That price carries a 35.5 percent margin, not 55. The error is small at low targets and enormous at high ones, and it always lands in the same direction: too cheap.
Cost-plus pricing starts from what you paid and adds a number that feels right. It is fast, and it quietly hands your pricing decision to your supplier. When their price rises three percent, yours rises three percent, whether or not the market cares.
Working backwards from margin starts from a different question: what does this product have to earn for the business to work. Fixed costs, acquisition cost and the profit you intend to make all sit inside that target. The price falls out of it.
| Target margin | Price from a $38.70 cost | Equivalent markup |
|---|---|---|
| 20% | $48.38 | 25.0% |
| 25% | $51.60 | 33.3% |
| 30% | $55.29 | 42.9% |
| 40% | $64.50 | 66.7% |
| 45% | $70.36 | 81.8% |
| 50% | $77.40 | 100.0% |
| 55% | $86.00 | 122.2% |
| 60% | $96.75 | 150.0% |
| 65% | $110.57 | 185.7% |
| 70% | $129.00 | 233.3% |
A 55 percent gross margin sounds comfortable until the deductions arrive, and none of them appear in a cost-plus spreadsheet.
On the $86 price: the product takes $38.70, a three percent channel fee takes $2.58, and acquiring the customer takes $22.99. What reaches the business is $21.73, or 25.3 percent of the price. The headline margin was more than double what the unit actually keeps.
Run the same product at a 45 percent target and the price is $70.36. Cost and fee take $40.81, advertising takes the same $22.99, and $6.56 survives. That is 9.3 percent, on a product whose margin looks respectable on paper.
The lesson is not that 45 percent is wrong. It is that acquisition cost is nearly fixed in dollars per unit while margin is a percentage, so the same ad cost eats a far larger share of a cheaper product. Anything you intend to sell through paid traffic needs the ad cost inside the pricing decision, not reviewed afterwards.
The trade convention is roughly half of retail, sometimes a little more for smaller accounts. Applied to the $86 price that gives a $43.00 wholesale price against a $38.70 cost, which is a 10.0 percent margin.
Ten percent does not cover picking, packing or the finance cost of a sixty-day payment term. The retail price was never built to be halved.
A product intended for both channels has to be priced from the wholesale requirement first. If you need 35 percent at wholesale on a $38.70 cost, the wholesale price is $59.54, and at a fifty percent discount the retail price has to be $119.08. That may be more than the market will pay, which is a real answer arrived at early rather than a surprise after the first trade order.
The alternative is to accept that the two channels carry different margins and to know which one is subsidising the other before a buyer negotiates it for you.
Charm pricing quietly rewrites the decision. The $86 becomes $79.99 in the last five minutes and takes eight points of margin with it.
The calculation produces $86.00. Somebody rounds it to $79.99 because it looks better on the shelf, and the margin falls from 55 to 51.6 percent. On this product that is $6.01 a unit. Across a thousand units it is $6,010, decided casually and never recorded as a decision.
Round upward to the nearest charm point rather than down. From $86.00, the choice is $89.99. If the market genuinely will not carry $89.99, the answer is not to accept $79.99 and hope; it is to recheck whether the target margin was affordable in the first place.
The other habit worth breaking is repricing whenever supplier costs move while leaving the target margin untouched for years. The target should be revisited when acquisition cost changes, when the channel mix shifts, or when fixed costs step up. Those move the margin the business needs. The supplier only moves the floor.