---
title: "The margin on the price list is not the margin on the order"
url: "https://mercantir.com/blog/price-list-margin-is-not-order-margin"
description: "Purchase and selling price give you a margin. Shipping, fees, discounts, packing and returns decide what is left of it, and they arrive weeks later in other systems."
---

# The margin on the price list is not the margin on the order

September 9, 2026·3 min read·Mercantir

Ask a trading business what its margin is and you will get a confident number. It is usually the difference between the purchase price and the selling price, averaged across the catalogue, and it is true in the way a price list is true: before anything has happened.

The margin that pays the bills is earned order by order, and by the time an order is finished several other costs have attached themselves to it. Most of them arrive later, in different systems, and are never put back against the order that caused them.

## What happens between the price list and the bank account

**Shipping.** Free above a threshold, charged below it, and the courier’s invoice arrives a month later as one total. Which order cost what is rarely worked out.

**Fees.** The payment provider takes a cut, the marketplace takes another, and both land in settlement reports rather than on the order.

**Discounts.** A code, a negotiated price for a regular customer, a “let me take a bit off that” on the phone. Each one is a decision about margin made by someone who cannot see the margin.

**Packing.** Picking twelve small items takes longer than picking one large one. The box, the filler and the minutes at the packing station are real costs that no product margin includes.

**Returns.** The refund, the shipping back, the inspection and sometimes the write-off. They arrive weeks after the sale was counted as a success.

**Payment terms.** In wholesale, a customer paying in sixty days is being lent money. That has a price, even if no invoice shows it.

## A deliberately simple example

Take a hypothetical order worth 100 with a product margin of 30. Shipping costs the business 8, the payment fee 2, a loyalty discount 5, and packing time and materials another 4. What is left is 11, not 30.

Now suppose one in five orders like it comes back, and each return costs 10 to process before the goods can be sold again. Spread across the orders that stayed, the margin drops further still. None of these numbers is real; the shape is. A product that looks healthy on the price list can lose money as a small marketplace order and earn well as part of a large wholesale one.

## Why it stays invisible

**The costs live in different places.** Courier invoices in accounting, fees in settlement statements, returns in a spreadsheet, discounts on the order. Bringing them together per order is nobody’s job.

**They arrive at different times.** The sale is counted on the day it happens. The costs trickle in over the following weeks, by which time the report has been read and the decisions made.

**Averages hide it.** Across the whole business the margin may look acceptable. The losses sit in particular combinations of product, channel, customer and order size, and an average exists precisely to smooth those away.

## What knowing it would take

**Costs attached to the order.** Even estimated ones, entered when the order ships and corrected when the real invoice arrives. An estimate on the order is more useful than an exact figure in a ledger nobody connects to it.

**Returns linked to the sale.** So that a returned order reduces the margin of the order it came from, not some general line at the end of the month.

**Margin by combination.** By channel, by customer, by order size and by product: the places where profit and loss actually separate.

**One record underneath.** This is the boring part. Margin per order can only be calculated where orders, stock movements, returns and customers sit in one place. When they sit in four, it becomes a quarterly project that nobody finishes.

## The measurable version

Pick ten orders from last month at random, small and large, from different channels. Work out the real margin on each by hand, with every cost you can find. It takes an afternoon.

The result is usually less comfortable than the price list and almost always more useful. It shows which orders you would rather not have, which customers are worth more than they look, and where the free-shipping threshold is quietly costing you money.

-   margin
-   order management
-   costs
-   reporting

## Keep reading

-   [The supplier changed prices. Your products do not know yet](https://mercantir.com/blog/the-supplier-changed-prices-your-products-do-not-know-yet)
-   [The promotion the warehouse learns about from the orders](https://mercantir.com/blog/the-promotion-the-warehouse-learns-about-from-the-orders)