Gross margin tells you what a product costs to make — not what it costs to sell. This guide walks through a structured, five-layer method for calculating true net margin per order across Shopify, Shopee, Lazada, and TikTok Shop, accounting for packaging, last-mile delivery, payment gateway fees, and platform commissions.
Before opting into a Shopee, Lazada or TikTok Shop promotion, every seller needs a structured profitability analysis. This guide walks through how to calculate contribution margin at promotional pricing, determine the break-even volume uplift required, assess cash flow impact, and compare outcomes across channels — so you can make the decision with numbers, not assumptions.
Most e-commerce operators know their blended return rate but have no idea how it splits by channel. This guide shows you how to track return rates across Shopify, Shopee, Lazada and TikTok Shop, calculate the true cost of every return, and rebuild your contribution margin model so you can see which channels are actually making money — and which are quietly destroying it.
