Body Composition Analysis Service Break-Even: 326 Assessments/Month

Fixed costs $27.1K/mo Base overhead

Contribution margin 80% After variable costs

Break-even revenue $34.0K/mo Monthly target

Break-even timing Month 1 Launch month

Break-even calculator

Use monthly revenue, variable expenses, and fixed costs to see when this body composition service crosses break-even.

Lean Base Full

Monthly revenue Revenue is the cash in that helps cover fixed costs after direct costs. $ Low sales High sales Variable expenses These are direct costs that rise with each scan, session, or booking. $ Low direct cost High direct cost

Money available to cover fixed costs $113,527 $136,780 revenue - $23,253 variable expenses

Margin ratio

83%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly cost base break-even has to cover. $ Low overhead High overhead

Break-even chart Revenue Total costs

Which body composition testing expenses stay fixed, and which move with assessment volume?

Cost classification

Break-even is only useful when each expense moves like the model says. Here, fixed overhead sets the monthly floor, while supplies, calibration, marketing, card fees, and staffing pressure rise with assessments or revenue.

Expense	Cost	Break-Even Treatment	Common Mistake
Clinic Rent	Fixed	Carry $6,500 per month in the break-even base across the normal planning range.	Treating rent as if it falls per assessment when bookings rise.
Utility and Medical Waste Services	Semi-fixed	Start with the $800 monthly base, then step it up when hours, rooms, or disposal pickups expand.	Holding it flat after capacity increases.
Equipment Maintenance Contract	Fixed	Include $1,200 per month before calculating contribution from each assessment.	Leaving it out because it is not tied to one appointment.
Single Use Hygiene Supplies	Variable	Apply per assessment: $3 in the first year, $3 in the second year, then lower per the model.	Forgetting disposables and overstating contribution margin.
Equipment Calibration and Gases	Variable	Apply per assessment: $5 in the first year, falling to $3 by the fifth year.	Treating all equipment-related spend as fixed maintenance.
Digital Marketing and Acquisition	Variable	Model as revenue-linked: 10% in the first year, tapering to 6% by the fifth year.	Using a flat marketing line while volume scales.
Payment Processing Fees	Variable	Apply 2.5% of revenue in each forecast year.	Calculating break-even on gross revenue instead of net collected revenue.
Technician and Specialist Staffing	Semi-variable	Tie staffing to appointment capacity: roles expand from 1 senior technician and 2 specialists in the first year as volume grows.	Treating payroll and equipment capacity as volume-free.

How does break-even change across lean, base, and full service formats?

Scenario table

Break-even shifts mostly with fixed payroll and site overhead, not with pricing, because contribution stays near 80% in every case. The core model shows $513k Year 1 revenue and $184k EBITDA, but the lean format still leaves a gap.

Planning assumptions use Year 1 pricing and capacity, so these figures are scenario estimates, not guarantees.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean appointment-only studio	$214k	$43k	$271k	80%	-$100k	Not break-even yet; fixed costs outrun the lean volume.
Base clinic plus mobile route	$427k	$86k	$271k	80%	$70k	Near break-even; a small volume miss flips profit negative.
Full-service corporate and athlete mix	$977k	$196k	$271k	80%	$509k	Strong cushion; added growth overhead is the next risk.

What breaks the break-even plan if bookings slow or costs rise?

Stress test

The plan clears break-even now, but the cushion is not wide. A 20% revenue drop almost wipes profit, and fixed-cost or test-level margin pressure can turn a good year into a loss fast.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$339,000	$88,000 cushion	Healthy cushion if volume holds.
Revenue shortfall	Revenue falls 20% from the base plan.	$339,000	$3,000 cushion	A small miss nearly erases profit.
Fixed cost pressure	Fixed costs rise by $30,000.	$377,000	$50,000 cushion	Rent or staffing creep cuts the cushion.
Margin pressure	Variable costs rise by $10 per test.	$359,000	$68,000 cushion	Small cost creep takes about $19,000 of profit.
Combined pressure	Revenue falls 20% and fixed costs rise by $30,000 while margin pressure holds.	$399,000	$57,000 gap	A sales miss plus cost creep turns profit into loss.

What should you prove before you lock the clinic lease and full hiring plan?

Founder checklist

Here’s the quick math: your current model needs 326 monthly assessments at a $104 average ticket, plus Month 2 cash of $732K. If either one is soft, wait on the lease and hires.

1Pipeline Proof326/mo

Confirm your booked-assessment pipeline can reach 326 monthly assessments before you sign the lease, and use referral proof before you scale acquisition spend.

2Ticket Floor$104

Protect the $104 average ticket before discounting packages, because lower pricing raises the monthly volume you need to break even.

3Margin Check79.5%

Keep contribution margin at 79.5% by holding the 3.0% hygiene, 5.0% calibration, 10.0% acquisition, and 2.5% processing lines in check.

4Fixed Load$27.1K/mo

Do not add more payroll or rent until booked volume covers the current fixed load of about $27.1K a month from listed overhead and Year 1 staffing.

5Capacity Ramp410

Verify specialist, nutrition, mobile, and coaching coverage can deliver 410 first-year assessments, or growth will hit a service bottleneck before it hits profit.

6Cash Cushion$732K

Hold the Month 2 cash need at $732K, because capex and startup payroll land before the model’s steady revenue does.