| Studio Lease |
Fixed |
Include the $8,000 monthly lease in overhead before calculating required class, membership, event, and commission revenue. |
Underestimating the rent burden when class volume is still ramping. |
| Utilities |
Semi-variable |
Model the $1,500 monthly base load, then watch usage as kilns, lighting, and class hours increase. |
Ignoring higher power use from kiln firing and gallery lighting. |
| Business Insurance |
Fixed |
Treat the $500 monthly premium as required overhead across the full planning period. |
Treating insurance as optional during slower months. |
| Website and point-of-sale (POS) system |
Fixed |
Include the $300 monthly system spend in overhead; POS means the tools used to take card and in-person sales. |
Forgetting the tools needed to process card sales and bookings. |
| General Maintenance |
Semi-fixed |
Carry the $400 monthly upkeep amount, but expect step-ups when equipment use and foot traffic rise. |
Delaying repairs until they disrupt classes or gallery operations. |
| Art Supplies for Classes |
Variable |
Apply 5.0% against class and workshop fee revenue as student volume grows. |
Pricing classes without covering clay, paint, canvas, and other materials. |
| Payment Processing Fees |
Variable |
Apply 2.5% to revenue processed through cards and online payments. |
Ignoring card fees on memberships, workshops, events, and art sales. |
| Marketing and Advertising |
Variable |
Model demand spend at 8.0% of revenue, then test whether each channel fills paid classes and events. |
Cutting demand spend too early and slowing the path to break-even. |