Margin vs. markup: stop underpricing your 3D prints

You finish a print, total its costs and add 30%. That is a markup. It can be a useful way to describe a price, but it does not mean you keep 30% of the customer’s payment as profit.

For an $8 order with no selling fees, a 30% markup gives a $10.40 price and $2.40 profit. Divide $2.40 by $10.40 and the margin is about 23.1%. To keep 30% of the selling price, the price needs to be at least $11.43. The $3.43 profit is about 30.0% of that price.

These formulas assume the cost total includes everything you intend to recover. Leaving out setup time or packaging makes both percentages look better than the job really is.

Move the slider and watch the two prices separate. At 0%, they match. As the percentage rises, treating margin as markup leaves a larger gap.

For example, 50% markup turns $8 of cost into $12 of revenue: $4 profit is only one-third of the selling price. A 50% margin requires $16 of revenue, leaving $8 after the same cost. Neither target proves buyers will accept the price.

Selling fees come out of revenue too. Suppose the same order has $8 in costs, a hypothetical 3% fee on the product subtotal and a $0.30 fixed fee per order. There is no shipping charge or tax in this example.

The fee-inclusive target is ($8 + $0.30) ÷ (1 − 0.03 − 0.30), rounded upward to $12.39. Displayed profit and percentages are rounded; the fee calculation uses unrounded amounts. These are example fees, not the current rates of a particular marketplace.

If shipping revenue is involved, or a fee applies per unit instead of per order, the calculation changes. The full calculator lets you select those scopes rather than assuming every charge works the same way.

Begin with real costs: supports and purge waste, electricity, active labor, components, packaging and shipping. Choose a target margin, then compare the resulting price with comparable products and what customers value about yours.

If the price feels too high, investigate the job before reducing the target. A larger batch may share setup time across more units. Less finishing work can reduce labor. A cheaper filament may change appearance or quality. Price changes have tradeoffs; none of these choices automatically improves the business.

LayerWorth’s target margin uses total customer revenue, including shipping charged. Its selling-price check shows estimated profit after your entered costs and fee rules. Maker adds machine wear and failed-print reserves; those locked assumptions are excluded from Free.

Use profit per printer-hour alongside margin. A high-margin print can still occupy a printer for most of a day while leaving little absolute profit. Margin tells you the share of revenue you keep; printer-hour profit tells you what the occupied machine time earns in the estimate.