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Retail margin calculator: what does the shelf earn each month?

Enter what you pay per unit, what you sell it for, how many units you sell in a month, and the total staff commission for the month. The calculator shows margin per unit, margin %, what the line earns each month after commission, and how many units it takes to cover the commission.

This page is the same calculator as our private-label margin calculator, with retail starting values already filled in — units sold per month instead of units per order, staff commission instead of per-order fees. Pricing a single order instead of a month of sales? Use the private-label margin calculator →

LabelOrigin, a Rankly Design brand, connects med spas and salons with US manufacturers like Renaud Naturals (Loveland, CO). Robert is your contact from first question to samples.

By Robert — LabelOrigin, a Rankly Design brand. Your numbers only — not a quote. Nothing you enter leaves your browser.

Your month

The starting values are the worked example below, not typical figures. Change every one of them to your own. Staff commission is the total paid to staff on retail sales for the month — if you pay per unit, multiply it by units sold and enter the total.

Your margin

FigureArithmeticResult
Margin per unit——
Margin %——
Monthly revenue——
Monthly product cost——
Staff commission——
Monthly margin after commission——
Break-even — units to cover commission——

Enter all four numbers above to see your margin.

Wholesale

Put your name on it

Your clients trust you, not a brand you resell. Wholesale skincare for med spas: your own label on Renaud Naturals formulas, low minimums, sample kits first.

Disclosure: Renaud Naturals is LabelOrigin's flagship client — Renaud pays LabelOrigin to bring it wholesale buyers. LabelOrigin doesn't sell product; Renaud quotes and fulfills.

See how wholesale works →

Worked example

These are example numbers — not industry benchmarks, and not typical figures. Change every one of them to your own.

StepArithmeticResult
InputsUnit cost $8.00, retail $24.00, 40 units a month, $150.00 staff commission—
Margin per unit$24.00 − $8.00$16.00
Margin %$16.00 ÷ $24.00 × 10066.7%
Monthly margin after commission$16.00 × 40 − $150$490
Break-even$150 ÷ $16.00, rounded up10 units

How to read it

Margin per unit is the money each sale keeps after paying for the product itself. Margin % is that figure as a share of the retail price, which is the number to compare across products and against the line you resell today. Monthly margin is margin per unit multiplied by units sold, minus the staff commission for the month — that is what the shelf earns after product cost and commission, before rent, tax, and the other costs of the shelf. Break-even is how many units must sell before the month's commission is covered; every unit after that is margin.

Two things change the answer most. First, the gap between unit cost and retail price: a $2 change in either moves margin per unit by the same $2, and margin % moves with it. Second, the units sold: the same per-unit numbers look very different at 50 units a month and at 250, because commission is a fixed monthly amount spread across however many units sell. If break-even is higher than the units you sell, the commission eats the whole month's margin — sell more units, raise the retail price, or renegotiate the commission before the line can earn anything.

If margin per unit is zero or negative, the retail price is at or below what you pay, and there is no break-even to show. That is not a rounding problem; it means the price or the cost has to change before the line can earn anything. Start with a sample kit to test the products on your own skin before you commit to a line, and read the guide to reading a manufacturer quote so the unit cost you enter is the all-in figure, not just the fill price.

Not a quote. Every figure above comes from the numbers you enter, not from any manufacturer. Use the result to judge real quotes, then get itemized quotes on the same basis before committing to a line.

Frequently asked questions

What counts as unit cost?

What you pay the manufacturer for one finished, labeled unit. If your quote bundles fill, packaging, and labels into one per-unit figure, use that all-in figure. Keep it on the same basis as the retail price: both are per unit, so a per-unit cost against a per-set retail price will mislead you.

How do I enter staff commission?

Enter the total commission paid to staff on retail sales for the month, in dollars. If you pay commission per unit sold, multiply that per-unit figure by the units sold and enter the total. If you pay a percentage of the retail price, work out the dollar total for the month's units first — the calculator does not take a percentage, so the dollar figure keeps the math honest.

What margin % should a spa aim for?

There is no single published target, and this calculator does not set one. Compare the result against what you earn reselling someone else's line and against your treatment-room margins, and judge it against your own costs — rent, staff time, and the shelf space the line occupies. The calculator shows your number so the comparison is honest.

Is this a quote from a manufacturer?

No. Every figure comes from the numbers you enter. Nothing here is a price from any manufacturer. Use the result to judge real quotes: get every quote itemized on the same basis — same products, units, and packaging — or the totals will mislead you.

Related tools: the private-label margin calculator (what one order earns), the launch cost calculator, and the retail-shelf ROI calculator. Related reading: private label vs reselling margins, selling skincare in your spa, and pricing your own skincare line.