| Rent ($3,500/month) |
Fixed |
Include the full monthly rent in fixed overhead from Month 1 through Month 60. |
Spreading rent by unit sold and hiding the true monthly hurdle. |
| Utilities ($800/month) |
Semi-variable |
Model a base monthly charge, then allow usage to rise as refrigeration load and store traffic grow. |
Treating electricity as fully fixed when cooler use can climb. |
| Internet & Phone ($150/month) |
Fixed |
Keep the full monthly amount in fixed overhead for the planning range. |
Linking it to sales volume without a usage driver. |
| Payment Processing Fees (2.5% in first year) |
Variable |
Apply as a percentage of sales because card fees rise with revenue. |
Budgeting it as a flat monthly charge and overstating margin at higher sales. |
| Marketing & Event Supplies (5.0% in first year) |
Variable |
Treat as sales-linked spend tied to customer activity and events. |
Locking the spend as fixed even when events and volume change. |
| Direct Sourcing Fees (5.0% in first year) |
Variable |
Apply against sales because sourcing fees rise with product volume. |
Treating inventory-related purchases as fixed overhead. |
| Merchandise Cost (3.0% in first year) |
Variable |
Model as a percentage of merchandise sales, not as a monthly operating bill. |
Putting product purchases into fixed expenses and distorting gross margin. |
| Store Manager and base Retail Staff |
Semi-fixed |
Hold base staffing steady, then step up labor when operating scale requires more coverage. |
Treating all labor as variable and missing payroll needed before sales arrive. |