| Manufacturing Facility Lease |
Fixed |
Use $12,000 per month from Month 1 through Month 60 before calculating unit contribution. |
Treating the lease as production-linked. |
| Insurance General Liability |
Fixed |
Use $1,200 per month as a stable operating expense across the planning range. |
Tying insurance directly to unit volume. |
| Software SaaS and ERP |
Fixed |
Use $2,500 per month as recurring overhead, not as product-level manufacturing spend. |
Burying software inside COGS. |
| Utilities and Internet |
Semi-variable |
Start with the $3,000 monthly base, then add facility power usage at 2.1% of revenue. |
Treating all utility spend as fixed. |
| Direct Machine Operator |
Variable |
Use the per-unit input, such as $0.01 per recycled resin button produced. |
Mixing direct labor with supervisors. |
| Shipping and Freight Out |
Variable |
Use 4.5% of first-year revenue, equal to about $75,600 on $1.680 million of revenue. |
Forgetting outbound freight in unit economics. |
| Equipment Maintenance |
Semi-fixed |
Use the 1.5% revenue assumption, and review it when production volume steps up. |
Ignoring higher upkeep at higher volume. |
| Raw Pellets, Brass Stock, Bio-Resin, Zinc Ingots |
Variable |
Use SKU-level material rates: $0.02, $0.05, $0.10, and $0.12 per unit. |
Using one average material rate for every SKU. |