eCommerce Profit Calculator
Follow the money past the sale
Calculate Blended ROAS, MER and contribution margin using net product sales, paid media and your variable costs.
The formulas
Net sales = gross product sales − discounts − refunds and returns. Blended ROAS = net sales ÷ paid media spend. MER = net sales ÷ all marketing costs. Contribution = net sales − product costs − logistics − payment fees − all marketing.
Use a consistent reporting period and currency. Exclude VAT and shipping charges collected from customers. Contribution is before fixed overheads, financing and tax.
