| Raw Material & Manufacturing |
Variable |
Apply as 10.0% of revenue in the first year; it moves with units sold. |
Treating inventory cash purchases as monthly profit expense. |
| Quality Control & Packaging |
Variable |
Apply as 3.0% of revenue in the first year; include it in contribution margin. |
Putting packaging into fixed overhead and overstating margin. |
| Shipping & Fulfillment |
Variable |
Apply as 4.0% of revenue in the first year; it rises with order volume. |
Using one flat monthly estimate despite changing order count. |
| E-commerce Platform Fees |
Variable |
Apply as 2.5% of revenue in the first year; treat it as a sales-linked fee. |
Counting it below EBITDA instead of inside unit economics. |
| Web Hosting & Software Subscriptions |
Fixed |
Use $1,500 per month from Month 1 through Month 60. |
Spreading it across units before calculating total fixed overhead. |
| Legal & Accounting Services |
Fixed |
Use $2,000 per month as recurring overhead in the break-even base. |
Removing it because it feels discretionary early on. |
| Content Creation & Photography |
Fixed |
Use $3,000 per month as planned operating overhead. |
Mixing recurring content spend with launch asset spending. |
| Annual Marketing Budget |
Semi-variable |
Use $150,000 in the first year; model it as planned demand spend, not a per-order fee. |
Assuming every marketing dollar scales perfectly with sales. |