Measure profit by customer using sales and cost drivers. Compare gross and net margins instantly. Export results, study trends, and improve smarter marketing decisions.
Fill in pricing, demand, discounts, service costs, retention spending, and acquisition cost. The calculator estimates gross, contribution, and net customer margin.
Gross Revenue = Analysis Periods × Orders per Period × Units per Order × Selling Price per Unit
Discount Amount = Gross Revenue × Discount Rate
Refund Amount = (Gross Revenue − Discount Amount) × Refund Rate
Net Revenue = Gross Revenue − Discount Amount − Refund Amount
Direct Variable Costs = COGS + Shipping Cost + Payment Processing Cost
Gross Profit = Net Revenue − Direct Variable Costs
Contribution Profit = Net Revenue − Direct Variable Costs − Support Cost − Retention Cost − Other Cost
Total Cost Before Tax = Direct Variable Costs + Support Cost + Retention Cost + Fixed Cost + Other Cost + CAC
Net Profit Before Tax = Net Revenue − Total Cost Before Tax
Tax Amount = Positive Net Profit Before Tax × Tax Rate
Net Profit After Tax = Net Profit Before Tax − Tax Amount
Margin % = Profit ÷ Net Revenue × 100
Break-Even Revenue = (CAC + Fixed Cost) ÷ Contribution Margin Ratio
| Customer Segment | Net Revenue | Total Cost | Net Profit After Tax | Net Margin |
|---|---|---|---|---|
| Startup Segment | USD 9,300.00 | USD 6,580.00 | USD 2,448.00 | 26.32% |
| SMB Segment | USD 14,750.00 | USD 10,120.00 | USD 4,167.00 | 28.25% |
| Enterprise Segment | USD 28,400.00 | USD 20,650.00 | USD 6,975.00 | 24.56% |
These sample values illustrate how different segments can produce different customer margins under distinct cost and pricing structures.
Customer margin measures how much profit remains after subtracting the costs required to acquire, serve, retain, and fulfill revenue from a customer or segment.
Gross margin focuses on revenue minus direct product and delivery costs. Customer margin goes further by adding acquisition, support, retention, and allocated operating costs.
CAC shows whether campaign spending is justified by later profits. A customer may look profitable operationally but still destroy value once acquisition cost is included.
Not always. Strategic decisions may use contribution margin without fixed allocations. Full profitability analysis should usually include a reasonable fixed-cost share for comparison across segments.
Break-even revenue estimates how much net revenue is needed to cover CAC and allocated fixed costs, given the current contribution margin structure.
Yes. High discounts, refunds, low pricing, weak order frequency, or expensive acquisition and support can push customer margin below zero.
Review it monthly or after major pricing, campaign, or fulfillment changes. Fast-moving channels may need weekly monitoring for timely action.
Higher average order value, better retention, lower refunds, smaller discount leakage, cheaper acquisition, and tighter fulfillment costs usually improve customer margin fastest.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.