Work out what a D2C order actually earns after GST, product cost, packing, shipping, payment fees, COD returns and marketing - CM1/CM2/CM3, the most you can pay to acquire a customer, breakeven ROAS, and how deep a discount can go before the order loses money. Use when the user asks about margin, unit economics, contribution margin, CM1/CM2/CM3, breakeven ROAS, max CAC, whether a product or a discount is profitable, what RTO is costing them, or how to price a SKU.