More orders can mean the business is moving forward. They can also mean it is selling more of a less profitable mix. To choose the next marketing investment, we need to see what remains after the costs those orders create.
Follow growth through to what it leaves behind.
1. Compare revenue on the same basis.
Start by reconciling store orders, payments and advertising reports. Check how each handles discounts, cancellations, returns, taxes and delivery. Two figures with the same label may represent different things.
Choose a shared definition of net revenue and an observation window that allows returns to appear. Separate new and existing customers, key products and promotions. A store-wide average can hide a category growing with very little contribution.
2. Build a contribution view.
From net revenue, subtract product costs and relevant variable costs: payment processing, delivery paid by the store, commissions, handling returns and advertising. Apply the same rules across periods. If an adjustment is already reflected in net revenue, do not subtract it again.
This working calculation shows the contribution left before fixed costs and other items. It is not the company’s net profit. Its purpose here is to show whether additional volume supports the commercial model or puts it under pressure.
3. Choose what deserves to grow.
When contribution falls, look for the change in economics: deeper discounts, acquisition costs, product mix, basket value, returns or delivery. Choose a specific hypothesis and an intervention you can assess: a different offer, a clearer product page or a selection with stronger economics.
Repeat purchases can change the assessment of initial acquisition, but they need to be observed in real customer cohorts over a relevant period. Do not cover an unprofitable first order with assumed future value. Decide what initial loss the business can afford and what evidence supports that decision.
A busier store. A smaller contribution.
Fictional, simplified example in RON. Net values are comparable; the cost rows are separate categories.
| Measure | Period A | Period B |
|---|---|---|
| Net revenue | 100,000 | 120,000 |
| Product costs | 45,000 | 57,000 |
| Other variable costs | 10,000 | 15,000 |
| Advertising | 20,000 | 30,000 |
| Remaining contribution | 25,000 | 18,000 |
Revenue rises 20% while contribution falls 28%. The example excludes fixed costs, taxes and the full complexity of an actual store.
What belongs beside the campaign report
Reconciled net revenue and shared rules for cancellations and returns.
Variable costs and contribution for important products or categories.
New and existing customers analyzed separately over comparable periods.
A clear hypothesis about what would make the next growth step sustainable.
A larger budget is a decision about demand and the business’s ability to serve it profitably. First identify the combination worth growing. Then build the advertising around it.