What Is GPM (Gross Profit Margin)? Formula & Benchmarks (2026)
GPM (gross profit margin) is gross profit as a percentage of revenue — how much of each $1 of sales is left after subtracting what the goods cost you. The formula is: gross margin = (revenue − COGS) ÷ revenue × 100%. It deducts only direct cost of goods, not ads, rent or labor, so it's the first test of whether a product can make money at all.
To carry margin down to net profit, use our profit calculator.
The formula
Gross profit = revenue − COGS (cost of goods sold)
Gross margin = gross profit ÷ revenue × 100%
Keep the layers straight: gross margin deducts only COGS; deducting platform fees and shipping next gives contribution margin; deducting ads and fixed costs too gives net margin.
Worked example
A product sells for $50 and costs $20 landed. Gross profit = 50 − 20 = $30, so gross margin = 30 ÷ 50 × 100% = 60%. That 60% is the total "ammunition" you have to cover platform fees, ads and labor and still keep net profit — the thicker it is, the more room your ads have to miss and still work.
Healthy gross-margin bands (ecommerce reference)
| Gross margin | Read |
|---|---|
| Above 70% | Very fat, common for private label / digital |
| 50%-70% | Healthy, plenty of room for ads and ops |
| 40%-50% | Workable, watch fees and ad spend |
| 30%-40% | Thin, relies on volume or repeat orders |
| Below 30% | Very thin, little room for error |
There's no universal "good" gross margin: high-ticket and private-label products run higher, resold commodities run thinner. Always calculate it from your own real costs.
The other GPM on TikTok
In TikTok Shop / live-selling contexts, GPM sometimes means gross merchandise per mille = GMV ÷ views × 1,000, i.e. how much GMV each 1,000 views generate — a content-efficiency metric, entirely different from gross margin. When you see "GPM," confirm which one is meant; for the sales-volume sense see what GMV and GPM are.
Frequently asked questions
What is a good GPM? It depends on category and model: private label often runs 60%-70%, resold commodities may be just 30%-40%. Don't chase a fixed number — make sure the margin covers fees plus ads plus fixed costs and still leaves net profit.
What's the difference between GPM and gross profit? Gross profit is the dollar amount (revenue − COGS); gross margin is that amount as a percentage of revenue. Watch both: the rate shows per-order earning power, the amount shows total scale.
Is GPM the same as contribution margin? No. Gross margin deducts only cost of goods; contribution margin also deducts platform fees, payment and shipping, so it's closer to the real room your ads have to work with.
How do GPM and CAC work together? Your gross margin sets how much acquisition cost each order can absorb. A fatter margin can carry a higher CAC; a thin margin forces CAC very low to stay profitable.
To follow margin all the way to net profit and see how fees eat into it, read the TikTok Shop fees and profit-margin breakdown.
Leads EshopPick's product-research and data desk. Focuses on TikTok Shop US sourcing frameworks, fee-and-profit math, and platform comparisons. Every take is grounded in our weekly real-sales data and Opportunity Score — practical calls, not chart-chasing.