Profitability
Set a floor price per product and refuse promotions that would push the net margin below zero.
Real project · Cosmos Wave agency, Amazon Verified Partner
Selling more is not enough. Know what every sale earns.
On marketplaces, commissions, VAT and carrier weight brackets all stack up. Without a tool, there is no way to know whether a product is profitable or running at a loss as soon as a customer orders a batch.
The problem
Each platform has its own commissions, each carrier its own weight brackets, and VAT is added on top of everything. A price that looks profitable can become a loss depending on the format sold or the shipping method. Spreadsheets are no longer enough to decide before setting a price.
The approach
Bring profitability calculations and shipment preparation together in the same tool. Each batch is analyzed before it even leaves the warehouse: the business decision and the logistics reality finally speak the same language.
The solution provided
- Simulate the net margin using three logics: target price, target margin, or price imposed by the platform.
- Factor in marketplace commissions, VAT and shipping costs by weight.
- Identify the most profitable number of units per batch, without tipping into the next weight bracket.
- Alert on products that fall below the profitability threshold.
- Generate manifests and shipping documents for the warehouse.
What the data lets you decide
Customer
Build bundles that increase order value while staying below the weight limit.
Risk
Suspend a product as soon as its logistics costs make it unprofitable, before volume makes the losses worse.
Organization
Give warehouse staff precise manifests, consistent with the planned packaging.
Management
Decide, product by product, between shipping it yourself or handing storage and delivery over to the platform.
Revenue is reassuring. Net margin decides.
What this demonstrates
A useful business tool doesn't just replace a spreadsheet. It makes visible decisions that used to be made blind.
Under the hood
Lovable, Supabase, typed calculation engine, PDF export of manifests.
Do you sell on marketplaces without knowing your real margin?
Your role. Your business problem. Your current workflow.
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