Breakfast Restaurant Break-Even Analysis: $125K Monthly Sales

Fixed costs $10.3K Monthly base

Contribution margin 82.5% After variable costs

Break-even revenue $12.5K Monthly target

Break-even timing Month 3 Launch breakeven

Break-even calculator

Test monthly revenue, variable expenses, and fixed monthly costs to see where this breakfast restaurant breaks even.

Lean Base Full

Monthly revenue Revenue is the top line that must cover direct costs and overhead. $ Slow start Busy month Variable expenses These rise with sales, like food, packaging, card fees, and other direct costs. $ Lean costs Heavy costs

Money available to cover fixed costs $54,446 $64,740 revenue - $10,294 variable expenses

Margin ratio

84%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly cost base that contribution margin must cover. $ Slim overhead High overhead

Break-even chart Revenue Total costs

Which breakfast restaurant expenses are fixed, and which move with sales?

Cost classification

Break-even is only useful if each expense behaves the way the model says it does. Treat ingredients, supplies, and card fees as sales-linked, but keep stable monthly commitments separate.

Expense	Cost	Break-Even Treatment	Common Mistake
Breakfast ingredients	Variable	Model at 12.0% of sales in the first year, declining to 10.0% by the mature year.	Using one flat dollar amount even when cover count rises.
Packaging and supplies	Variable	Model at 2.0% of sales in the first year, declining to 1.5% by the mature year.	Forgetting that to-go volume raises supply use.
Payment processing fees	Variable	Model at 2.0% of sales in the first year, declining to 1.5% by the mature year.	Treating card fees as fixed overhead.
Route or off-site service costs	Variable	Model at 1.5% of sales in the first year if off-site service is used, declining to 1.0% by the mature year.	Adding the expense to every month even without off-site sales.
Lead server pay	Semi-fixed	Model as $38,000 annual salary until service volume requires another staffing step.	Scaling salary in a straight line with revenue.
Part-time server pay	Semi-variable	Model at 0.5 full-time equivalent in the first year, then increase with staffing needs.	Ignoring labor creep when weekend covers grow.
Insurance	Fixed	Model as $400 per month across the relevant break-even range.	Reducing insurance when sales are slow.
Rent placeholder	Fixed	Rent is not separately provided, so input it as fixed before lease decisions.	Leaving rent out, then overstating break-even safety.

How does break-even shift from a lean opening month to a base run rate and a full build-out?

Scenario table

Higher traffic and a better sales mix lift the contribution margin, so more of each sales dollar covers fixed labor and base fees. The lean case sits near break-even, while the base and full cases build a wider cushion.

Model-based planning figures only; actual results will move with traffic, pricing, staffing, and waste.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean opening month	$27,201	$4,764	$10,325	82.5%	$12,167	Near break-even; one weak month can wipe out the cushion.
Base year three run rate	$59,187	$9,471	$13,033	84.0%	$36,583	Clear cushion; break-even risk drops if staffing stays tight.
Full mature year run rate	$88,796	$12,431	$19,283	86.0%	$57,083	Strong cushion; scale makes fixed costs easier to cover.

What breaks the break-even plan if breakfast traffic slows or costs rise?

Stress test

The base case has a wide cushion, but it depends on weekday traffic staying steady and costs staying close to plan. If sales slip, check sizes fall, or fixed overhead rises, break-even pressure climbs fast.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$125,000	$187,000 cushion	Solid cushion, but weekday traffic still matters.
Revenue shortfall	Monthly revenue falls 20% to $250,000.	$125,000	$125,000 cushion	Weekend volume can hide weak weekdays for a while.
Fixed-cost pressure	Fixed costs rise 10% to about $113,000.	$138,000	$174,000 cushion	Added rent or payroll pushes break-even higher.
Margin pressure	Variable expense rate rises 5 points.	$133,000	$179,000 cushion	Lower checks or more waste hit contribution first.
Combined pressure	Revenue falls 20%, variable expense rises 5 points, and fixed costs rise 10%.	$146,000	$104,000 cushion	Weak Monday-to-Thursday covers plus higher costs can cut the cushion fast.

Can you prove breakfast demand and cash runway before you sign the lease?

Founder checklist

Only sign the lease if Year 1 traffic can hold 330 weekday covers and 380 weekend covers, at $8 midweek and $12 weekend checks, while covering about $10.3k of monthly fixed cost. If the Month 2 cash floor is not fully funded, the build is too early.

1Morning traffic710/wk

Verify you can reach 330 weekday covers and 380 weekend covers before you commit, because that is the demand base the Year 1 model needs.

2Ticket size$8 / $12

Test whether the menu can hold an $8 midweek check and a $12 weekend check, since lower tickets cut revenue fast even if traffic holds.

3Fixed load$10.3K/mo

Check the lease against the current fixed base of about $1,950 a month plus $8,375 in monthly payroll, because there is no separate rent line to absorb a big jump.

4Unit margin82.5% CM

Keep ingredients, packaging, processing, and fuel near 17.5% of sales, because that leaves about 82.5% contribution before fixed costs.

5Staffing ramp2.5 FTE

Start with the owner, lead server, and 0.5 part-time server, and do not add later roles until traffic proves the ramp.

6Cash floor$780K

Hold enough cash through the Month 2 low point and fund the $135.8k opening build, because the model's minimum cash need is $780k.