Jewelry Stone Setting Course Break-Even Analysis: $41K/Month

Fixed costs $33.0K/mo Monthly fixed base

Contribution margin 80.1% After variable spend

Break-even revenue $41.2K/mo Needed monthly sales

Break-even timing Month 2 Forecast break-even point

Break-even calculator

Test monthly revenue against variable expenses and fixed monthly costs to see when this course breaks even.

Lean Base Full

Monthly revenue Revenue from classes and kit sales sets the margin available to cover fixed costs. $ Lower sales Higher sales Variable expenses Direct class costs, materials, processing, and recruitment rise with revenue. $ Lower costs Higher costs

Money available to cover fixed costs $56,300 $69,250 revenue - $12,950 variable expenses

Margin ratio

81%

Covers fixed costs

Yes

Fixed monthly costs Lease, instructors, admin, software, and insurance must be covered each month. $ Lower fixed Higher fixed

Break-even chart Revenue Total costs

Which gemstone setting course expenses stay fixed, and which move with enrollment?

Cost classification

Break-even only works if fixed overhead and enrollment-linked spend are split cleanly. Here, a few percentage points on materials, tools, marketing, or card fees can move the Month 2 break-even view.

Expense	Cost	Break-Even Treatment	Common Mistake
Workshop Facility Lease	Fixed	Use $6,500 per month in the monthly overhead base.	Spreading rent by student and hiding the real capacity pressure.
Utilities and High Speed Internet	Fixed	Use $850 per month unless a separate usage charge is modeled.	Treating the full amount as student-linked spend.
Specialized Equipment Insurance	Fixed	Use $450 per month as stable operating overhead.	Moving insurance with enrollment when coverage is tied to equipment.
Instructor Payroll	Fixed	Treat staffed roles as fixed monthly payroll within the current class plan.	Modeling instructors as variable even when salaries are committed.
Consumable Metals and Gemstones	Variable	Model at 8.0% of revenue in the first year.	Treating gemstone samples as overhead instead of enrollment-linked spend.
Disposable Tooling and Burrs	Variable	Model at 3.0% of revenue in the first year.	Ignoring replacement wear as more students use bench tools.
Digital Marketing and Recruitment	Variable	Model at 6.0% of revenue in the first year.	Calling ads fixed while leads rise with enrollment targets.
Payment Processing Fees	Variable	Model at 2.9% of revenue across the forecast.	Leaving card fees out of contribution margin.

How does break-even move from a lean opening to a full classroom load?

Scenario table

Break-even shifts fast with occupancy because the same fixed workshop cost gets spread across more students. At 35%, the plan is still short; at 45%, it clears the line; at 90%, it has a wide cushion.

Planning assumptions only; actual results will vary with enrollment mix, pricing, and timing.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean opening plan	$385k	$77k	$330k	80.0%	-$22k	Still short of break-even, so occupancy needs to rise.
Base enrollment plan	$495k	$99k	$330k	80.0%	$67k	Clears break-even with a modest cushion.
Full classroom plan	$991k	$197k	$330k	80.1%	$463k	Wide cushion; fixed overhead is well covered.

What breaks the break-even plan for a jewelry stone setting course?

Stress test

At the current mix, monthly revenue needs to hit about $41,231 to cover fixed costs. That leaves only about $8,352 of cushion, so a small enrollment miss, pricier gemstones, or higher payroll can push the plan tight fast.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$41,231	$8,352 cushion	Break-even is covered, but the buffer is modest.
Revenue shortfall	Monthly revenue falls 15%.	$41,231	$915 cushion	Fewer than 10 enrolled students leaves almost no room.
Fixed-cost increase	Fixed costs rise 10%.	$45,353	$4,230 cushion	Higher rent or instructor payroll cuts the buffer by half.
Margin pressure	Variable expenses rise 5 percentage points.	$43,975	$5,608 cushion	Rising gemstone or consumable spend squeezes margin fast.
Combined pressure	Revenue falls 15%, fixed costs rise 10%, and variable expenses rise 5 points.	$48,372	$6,227 gap	The plan flips into a monthly cash gap.

Can you prove enough student demand before you sign the workshop lease?

Founder checklist

Yes—don’t lock in the lease or hire ahead of demand. The model only works if you can secure 10 student deposits a month, keep fixed commitments near $33,025 a month, and stay funded through the Month 2 cash trough.

1Student Deposits10 deposits/mo

Verify you can collect signed deposits for at least 10 students a month before you commit to the studio lease.

2Fixed Load$33,025/mo

Check the full monthly fixed load, including lease, utilities, insurance, maintenance, software, dues, and payroll, before you sign anything.

3Tuition Floor13 students

If kit sales stay soft, confirm tuition alone can support the school at about 13 students a month before you count extras.

4Seat Fill45% occupancy

Hold the second instructor until you can fill 45% of seats, or payroll will rise faster than repeat demand.

5Launch Spend$124.5K

Release the setup budget only after the booking and payment flow works and the benches, microscopes, ventilation, cleaners, lighting, and portal are ready.

6Cash Runway$838K, 25 mo

Keep enough cash to cover the Month 2 trough and the 25-month payback, because a thin reserve can stop the launch early.