Landed cost connects the product price paid upstream with the real cost of getting inventory ready to sell. It is one of the most important inputs in marketplace margin analysis because a low supplier price can still produce a weak margin.
An Etsy payout is a cash movement, not a complete profit statement. To understand what the sale actually earned, separate order revenue from fees, shipping, advertising and the seller’s own product and operating costs.
A marketplace fee comparison only helps when the fee definitions, price basis, shipping treatment and seller costs are aligned. A lower headline fee does not automatically mean a higher contribution margin.
Marketplace revenue tells you what the customer paid. It does not tell you what the seller kept after product cost, fulfillment, storage, advertising, returns, inbound logistics and other seller expenses.
Tell us what you are trying to build, what problem you are solving and where the digital part becomes difficult. Martzine is built around that gap. Start with the outcome and the constraint, then work back to the right digital layer.
