| Studio Rent |
Fixed |
Use $2,500 per month across the planning range. |
Spreading rent across each invitation and hiding true overhead. |
| Lead Designer / Owner Salary |
Fixed |
Use $90,000 per year, or $7,500 per month, as recurring overhead. |
Treating owner design time as free while modeling the salary separately. |
| Custom Invitation Suite Production |
Variable |
Apply $80 per suite for paper, printing, envelopes, design labor, and embellishments. |
Using revenue percentage only and missing the per-suite cash need. |
| Day-of Menus Production |
Variable |
Apply $0.33 per menu for stock, printing, design labor, finishing, and packaging. |
Modeling menus like a fixed design fee instead of unit volume. |
| Wedding Programs Production |
Variable |
Apply $0.31 per program for paper, printing, design labor, binding, and packaging. |
Forgetting that each added guest count adds production spend. |
| Save the Dates Production |
Variable |
Apply $0.55 per unit for stock, printing, envelopes, design labor, and packaging. |
Counting only printing and leaving envelopes out of break-even. |
| Sales Commissions |
Variable |
Apply 5.0% of first-year revenue, then use the modeled annual rate. |
Entering commissions as fixed payroll and overstating low-volume profit. |
| Graphic Designer Staffing |
Semi-fixed |
Add capacity in steps, starting at 0.5 FTE in Year 2 and rising with workload. |
Smoothing added staff as a per-order charge instead of a hiring step. |