| Warehouse Lease and Utilities |
Fixed |
Include $18,000 each month in fixed overhead. |
Spreading rent only across filled warehouse capacity. |
| Technology Infrastructure and Hosting |
Fixed |
Include $4,200 each month before contribution margin. |
Tying all hosting spend to order volume. |
| Shipping and Packaging Materials |
Variable |
Model at 12.0% of first-year revenue. |
Burying packaging spend inside overhead. |
| Third-Party Carrier Costs |
Variable |
Model at 8.0% of first-year revenue. |
Pricing service before carrier pass-through is clear. |
| Warehouse Storage and Handling |
Variable |
Model at 6.0% of first-year revenue. |
Assuming storage and handling are free. |
| Sales Commissions and Incentives |
Variable |
Model at 8.0% of first-year revenue. |
Counting commissions twice with customer acquisition cost. |
| Customer Support and Account Management |
Semi-variable |
Start at 4.0% of first-year revenue, then test exception load. |
Undercounting returns, order changes, and support tickets. |
| Warehouse Staff |
Semi-fixed |
Include $180,000 annual first-year payroll, then add shifts by volume. |
Hiring ahead of proven order density. |