E-Commerce Profit Margin Simulator
Simulate your unit economics: calculate real take-home margin per item after shipping, packaging, returns, and gateway fees.
Per-Item Unit Economics
Enter pricing, landed manufacturing, fulfillment, payment fees, and return allowances.
Contribution Margin
The actual share of order revenue remaining to cover fixed overhead, salaries, and customer acquisition.
Gross Margin
70.7%
Retail price vs COGS
Net Profit Per Unit
$46.34
Dollar contribution
Number of orders needed per month to generate $10,000 in net contribution cash flow.
How the Math & Economics Work
Understand the exact equations, managerial accounting rules, and unit economics governing these metrics in modern e-commerce.
To calculate what your business actually retains from every order, deduct all variable fulfilment and processing costs from the gross checkout price.
Direct manufacturing/wholesale cost
Postage cost net of shipping charged
2.9% + $0.30 gateway fee
Estimated return cost reserve
Actual margin pool remaining for ad acquisition and profit
Top-Line Revenue Illusion vs. Real Cash Flow
A $100,000 revenue month with a 70% gross margin seems strong. But after deducting $15,000 shipping, $3,200 payment processing, and $40,000 ad spend, actual retained cash is $11,800. Margain surfaces the complete waterfall every morning.
Frequently Asked Questions
Track Your Store's True Contribution Waterfall
Layer product costs, payment fees, and ad spend onto sales in real time with Margain Financial Clarity.
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