| Facility Lease |
Fixed |
Include the full $25,000 per month in fixed overhead for the relevant planning range. |
Spreading rent per visit and making it look variable. |
| Base Electricity |
Fixed |
Include the $15,000 monthly base load before calculating contribution margin. |
Treating all electricity as fixed when usage pressure also exists. |
| Property and General Liability Insurance |
Fixed |
Include $5,500 per month from property insurance and general liability insurance. |
Leaving insurance out of monthly break-even because it is not tied to tickets. |
| Core Payroll |
Fixed |
Model baseline roles such as general management, rink operations, and maintenance as recurring monthly overhead. |
Moving all labor with visits and overstating contribution margin. |
| Cafe Merchandise COGS |
Variable |
Apply as 50% of cafe and merchandise sales when calculating gross contribution. |
Counting cafe and merchandise revenue without the product cost. |
| Skate Maintenance Supplies |
Variable |
Apply as 15% tied to rental volume and skate usage. |
Treating sharpening, laces, and blade wear as fixed shop overhead. |
| Variable Utilities |
Semi-variable |
Separate the base utility load from the 60% usage-driven portion tied to refrigeration load and session traffic. |
Using one flat utility number and missing traffic-driven energy swings. |
| Added Operating Labor |
Semi-fixed |
Add instructors, skate shop attendants, cafe staff, and resurfacing labor in steps as visits grow. |
Modeling fractional labor as perfectly variable with every ticket sold. |