| Fixed admin overhead |
Fixed |
Use $10.9k/month for rent, admin utilities, insurance, compliance, accounting/legal, software, security, and supplies. |
Spreading office overhead across bottles and letting it rise with volume. |
| Year 1 wage base |
Fixed |
Treat first-year staffing as $50.3k/month, calculated from $604k annual wages divided by 12. |
Treating all payroll as purely variable because production volume changes. |
| Bottle and cap |
Variable |
Apply per unit: $0.07 for 500ml, up to $0.50 for bulk bottle amortization. |
Using one average container rate across all bottle formats. |
| Label |
Variable |
Apply per unit from $0.01 to $0.05, based on package size and bulk labeling. |
Burying labels in overhead instead of unit margin. |
| Water extraction |
Variable |
Apply per unit from $0.005 to $0.05 as production volume changes. |
Ignoring extraction cost because the water source is owned or controlled. |
| Bottling labor and bulk sanitization |
Variable |
Use $0.02 to $0.10 per unit for bottling labor, plus $0.08 sanitization on bulk units. |
Putting all plant labor into fixed payroll without a unit charge. |
| Plant support percentages |
Semi-variable |
Apply revenue-linked rates: energy 0.8%, chemicals 0.3%, maintenance 0.7%, testing 0.2%, and supervisor allocation 0.5%. |
Treating quality testing and maintenance as fixed, even when throughput rises. |
| Later-year added FTE capacity |
Semi-fixed |
Add staffing in steps as scale grows, such as production workers moving from 4.0 FTE in Year 1 to 8.0 FTE in Year 5. |
Letting headcount grow smoothly with every extra bottle sold. |