| Office Rent |
Fixed |
Include the full $4,500/month from Month 1 through Month 60. |
Scaling rent by orders or downloads. |
| Enterprise Software Subscriptions |
Fixed |
Include the full $1,200/month in monthly overhead. |
Treating subscriptions as per-sale expenses. |
| Cloud Hosting and CDN Services |
Variable |
Apply as revenue-based COGS: 4.0% in the first year. |
Ignoring delivery costs because products are digital. |
| Digital Rights Management Security |
Variable |
Apply as revenue-based COGS: 2.0% in the first year. |
Modeling security as a flat monthly tool only. |
| Payment Processing Fees |
Variable |
Deduct 3.5% of first-year revenue before contribution margin. |
Treating payment fees as fixed overhead. |
| Affiliate Marketing Commissions |
Variable |
Deduct 10.0% of revenue tied to commissionable sales. |
Forgetting commissions as affiliate volume grows. |
| Planned Marketing Budget |
Semi-fixed |
Model as planned spend: $60,000 in the first year, then $120,000 in the second year. |
Treating ad spend as purely variable. |
| Customer Support Lead Labor |
Semi-variable |
Start with 0.5 FTE in the first year, then step up as ticket volume needs more coverage. |
Holding support flat while repeat orders rise. |