Costing errors in early consumer goods launches are usually errors of scope rather than arithmetic: a number that is correct within its own boundaries gets treated as though it answered a larger question. All five below are common, avoidable, and far cheaper to fix before a production run than after one.
1. Anchoring on ex works unit cost
A manufacturer quotes a unit cost and the founder builds the business case on it. That number describes the cost of the product leaving the factory and nothing else. Freight, duty where applicable, warehousing, pick and pack, distributor margin, retailer margin and promotional participation all sit between it and the shelf price.
The correct anchor is the fully loaded cost to serve the intended channel, calculated at the promotional price rather than the full price.
2. Treating trade spend as marketing
Promotional allowances, listing fees and cooperative advertising contributions are frequently budgeted as marketing expenditure and therefore treated as discretionary. In grocery channels they are neither discretionary nor small, and they reduce realised margin directly.
Model the promotional calendar as a cost of goods sold, at the depth and frequency the category actually runs rather than the depth you would prefer.
3. Costing a volume you will not achieve
Manufacturers quote in volume bands. A cost price that assumes twenty thousand units becomes a different cost price at five thousand, which is frequently the realistic quantity for a first order. Founders who model the aspirational volume and order the affordable one discover the discrepancy after committing.
Model at least three volume scenarios and confirm the price break structure in writing with the manufacturer before proceeding.
4. Omitting packaging from the cost base
Primary packaging is usually costed. Secondary and tertiary packaging, tooling, artwork origination, plate charges and shelf ready configuration frequently are not, and in low value categories they can represent a substantial proportion of the delivered cost.
Packaging decisions also carry freight consequences. A carton configuration that wastes pallet space is a recurring cost applied to every unit shipped for the life of the product.
5. Confusing margin with cash
A launch can be margin positive and still fail. Production is paid for on the manufacturer's terms, which are frequently deposit and balance before dispatch. Revenue arrives on the retailer's terms, which may be sixty days or longer from invoice. The gap between them is funded from working capital.
Model the cash cycle separately from the margin. The question is not whether the product is profitable but whether the business can survive the interval before it becomes so.
Common questions
At what point should costing be modelled?
Before a supplier brief is issued. The brief should be written with the target cost structure understood, so that quotes can be assessed against a commercial requirement rather than accepted as given.
What margin should an FMCG founder target?
It depends entirely on category, channel and promotional intensity, and any single figure offered without that context should be treated with suspicion. The more useful test is whether the margin remains positive at the deepest promotional price the category runs regularly.
Founder Launchpad assesses launches against five dimensions before capital is committed. Read how the Launch Readiness Model works or book a fit call.