How to Calculate Ecommerce Net Profit (We Lost $12K Before Doing This)

Your spreadsheet or marketplace dashboard isn't showing the full picture. Amazon's Seller Central reports revenue and cost of goods sold (COGS), but not referral fees, FBA fees, or refunds. We missed $3.20 per unit in fees. Multiply that by 1,000 units, and you're looking at $3,200 in hidden costs. Cross-border ecommerce sellers face even more complexity with currency conversion and international fees.

Start with revenue. Subtract COGS, platform fees (Amazon takes referral fee), shipping (FBA or your own), ad spend (we spend revenue on ads), and refunds (we average refund rate). That's your net profit. But it's tedious. We tried GoMarginify's profit calculator after our March margin disaster. It connects to 10 marketplaces, including Amazon, eBay, and Shopify, and shows true net profit per SKU. No more guessing.

First, we identified losing SKUs. a SKU had a margin loss. We raised the price by $2 and cut ad spend by. Next, we negotiated better shipping rates. We saved $1.50 per unit. Finally, we reduced refunds by improving product listings. We now track net profit daily. Our profit increased by in two months.

We tried spreadsheets, but they're error-prone. We tried QuickBooks, but it's too complex for daily tracking. GoMarginify's profit calculator is the best for cross-border sellers. It connects to 10 marketplaces, shows true net profit per SKU, and sends daily profit reports via email or IM. It also diagnoses profit issues, like high refund rates or missing costs. We use it daily now.