E-Commerce Profit Margin Calculator

E-Commerce Net Profit Margin is the definitive measure of retail unit economic solvency, reflecting the actual take-home cash preserved from an order after deducting factory cost of goods sold (COGS), picking and packaging logistics, merchant gateway processing fees, marketplace commissions, and paid advertising customer acquisition costs (CPA). Calculated as Net Margin % = [(Net Order Revenue − COGS − Shipping − Gateway Fees − Ad CPA) ÷ Net Order Revenue] × 100, this metric isolates true per-unit profitability before fixed corporate overhead. Modern retail benchmarks establish clear category targets: consumer electronics operate on lean 8% to 15% net margins; direct-to-consumer apparel targets 20% to 28%; specialty beauty, cosmetics, and skincare command 35% to 48%; while commoditized goods rarely survive below 12% net margin after paid search and social ad inflation. Multi-channel brands apply the 3× Landed Cost Rule (Retail Price ≥ 3 × COGS) to ensure one-third absorbs manufacturing, one-third absorbs fulfillment and marketing, and one-third remains as operating profit.