| Business Insurance |
Fixed |
Include $250 per month in fixed overhead from Month 1 through Month 60. |
Allocating it per guest and overstating margin drag on larger tours. |
| Booking System Software |
Fixed |
Include $150 per month as a fixed platform charge for the planning range. |
Assuming software rises with each booking when the model shows a flat monthly fee. |
| Legal & Professional Fees |
Fixed |
Include $200 per month in the fixed monthly break-even base. |
Treating recurring professional support like a one-time setup item. |
| Food & Beverage Costs |
Variable |
Model at 10.0% of first-year revenue, then 9.5%, 9.0%, 8.5%, and 8.0% in later years. |
Treating tasting samples as fixed even though they rise with guests served. |
| Payment Processing Fees |
Variable |
Model at 2.8% of first-year revenue, stepping down to 2.4% by the mature year. |
Leaving card fees out of contribution margin because each fee looks small. |
| Sales & Marketing Commissions |
Variable |
Model at 3.0% of first-year revenue, falling to 2.2% by the mature year. |
Putting commissions in fixed marketing and missing the sales-linked drag. |
| Tour Guide Per-Tour Pay |
Semi-variable |
Model at 3.0% of first-year revenue, then lower by year as route density improves. |
Treating guide labor as fully fixed when it moves with tours and route count. |
| Salaried Operations and Guide Staffing |
Semi-fixed |
Include salary steps such as Founder/CEO at $80,000 and part-time guide FTE at $32,000. |
Spreading payroll per guest and hiding the next staffing step as volume grows. |