Supplement Margin Calculator
Your real profit per unit and per month — on any product in the catalog, at any volume, on every plan. Every fee is in the math. Nothing hidden in the fine print.
Example: Creatine Powder 300g (ROC609) at 100 units/month
MSRP $35.97. Every fee included: $2.00 fulfillment per item, 3.45% + $0.25 payment processing, membership deducted. Turn on JavaScript to run any product at any volume.
| Plan | Profit / unit | Margin | Net / month |
|---|---|---|---|
| Free ($0/mo) | $17.51 | 48.7% | $1,750.90 |
| Scale ($297/mo) | $23.18 | 64.4% | $2,020.90 |
How the math works
One formula, no asterisks. For every product and plan we calculate:
| Start with | MSRP — the retail price you charge |
|---|---|
| Minus | Your unit cost at your plan tier (lower tiers pay more per unit; Scale pays the least) |
| Minus | $2.00 fulfillment per item — label printing and application, picking, packaging supplies and labor, shipping label |
| Minus | Processing fee: 3.45% of MSRP + $0.25 per order |
| = Per-unit profit | What one sale actually puts in your pocket |
| Then | Per-unit profit × monthly units, minus your monthly membership = net monthly profit |
Shipping is paid by your customer at carrier rates, so it isn’t a margin line. Catalog costs and fees come straight from our published data files — the same ones members see.
Three steps to your number
Build your line-up
Add the products you actually plan to sell — one or several. Start with a top seller or browse the full catalog; each option shows its retail price.
Set each volume
Give every product its own realistic monthly units. Start conservative — the math updates live as you drag.
Compare plans
See the combined net profit side by side on every plan, which plan wins for your exact mix, and the volume where upgrading starts paying for itself.
Common questions about the numbers
How do margins work in practice?
You set your retail price (MSRPs are provided as a guide). Every order has four costs: the wholesale product cost for your plan tier, the flat $2 fulfillment fee, payment processing, and carrier shipping (usually passed to your customer at checkout). Example at Scale: Creatine 300g — $35.97 MSRP, $9.30 product cost, $2 fulfillment, ~$1.49 payment processing ≈ $23 profit per unit before shipping and ad spend, about 64% net margin.
Do my unit costs really drop on Scale?
Yes, and it compounds. Creatine 300g costs $14.97/unit on the Free plan and $9.30 on Scale — $5.67 more profit per unit on that one SKU. Past roughly 53 units a month, the Scale membership pays for itself on creatine alone — which is exactly what the calculator's crossover line shows.
Who collects the customer's money?
You do — sales land in your store's payment processor like any e-commerce order. Rocktomic bills you wholesale + fees for fulfillment. Your retail price minus those costs is yours.
The margin looks good. Now make it real.
Pick your plan and your first product ships under your brand in days — no inventory, no minimums.