A brand selling directly to consumers lives on three lines. Contribution margin for each unit sold. How long it takes to earn back the cost of winning a customer. And the share of customers who buy again within a year. Everything else, including channel mix, creative performance and how wide the range is, follows from those three. A brand whose three lines work can scale reliably. A brand whose three lines do not work cannot be rescued by scale, and usually gets worse as it grows.
Contribution margin, meaning revenue less the cost of goods and the variable cost of getting them to the customer, decides whether the economics work at all. In consumer goods sold through your own channels, a margin of about half the selling price gives room to pay for marketing and still keep something. Below about forty per cent, there is very little room, and the business becomes a way of converting advertising into turnover. Where the margin is structurally tight, because of the category, the sourcing or the competition, that has to be faced rather than planned around.
How long acquisition takes to pay back decides how fast the brand can grow safely. Where a customer repays the cost of winning them within a couple of months, growth can be funded from the business itself. Where it takes three to five months, growth has to be careful. Where it takes more than six, the brand is growing on money that has to come from somewhere else, and it is exposed if that source becomes less willing.
Repeat purchase within a year decides whether the brand is a business or a campaign. Where fewer than one customer in five comes back, the brand is buying a new customer base every cycle, which requires spending that never stops. Where more than one in three comes back, the base compounds and advertising slowly becomes a choice rather than a requirement. The most valuable investment a brand can make is usually whatever lifts that number, even when it does nothing for this month's revenue.
In this region a fourth line deserves attention, which is what happens after the order is placed. Orders paid on delivery can be refused at the door, and returns carry freight both ways. A brand that looks profitable before those costs and unprofitable after them is very common here, and the difference does not show up in the advertising platform's reporting.
We run our own label, wearon.co, against these lines, and repeat purchase is the one the team manages to. That is the discipline that makes it possible to refuse a campaign which would lift visits while damaging the number that matters. It is not a sophisticated approach. It is simply three lines, checked honestly, before the fourth decision is made.
If you can only fix one of the three, fix repeat purchase. Margin is largely set by the category and the sourcing, and payback follows from margin. Repeat purchase is the line most under your own control, because it is decided by the product, the delivery and the way a customer is treated when something goes wrong.



