Optical Store Break-Even Analysis: $25K Monthly Revenue Target

Fixed costs $11.5K/mo Operating overhead

Contribution margin 83% After variable costs

Break-even revenue $13.8K/mo Monthly target

Break-even timing Month 10 Forecast break point

Break-even calculator

Use this calculator to test whether monthly revenue covers direct costs and fixed overhead for an optical store.

Lean Base Full

Monthly revenue Revenue sets the cash left after direct costs to cover overhead. $ Low sales High sales Variable expenses Wholesale product cost and card fees move with sales. $ Low costs High costs

Money available to cover fixed costs $53,895 $64,935 revenue - $11,040 variable expenses

Margin ratio

83%

Covers fixed costs

Yes

Fixed monthly costs Rent, staff, software, and other monthly overhead. $ Low overhead High overhead

Break-even chart Revenue Total costs

Which optical store expenses are fixed, and which move with sales?

Cost classification

Break-even works only if stable overhead, step staffing, and sales-linked costs stay separate. In the first year, product cost at 12% and processing at 5% move with revenue, while rent stays fixed.

Expense	Cost	Break-Even Treatment	Common Mistake
Commercial Rent	Fixed	Include $4,000 per month as recurring operating overhead.	Adding the $78,000 fit-out and equipment spend to monthly rent.
Utilities	Fixed	Include $600 per month within the normal planning range.	Treating basic store utilities as if they rise with every sale.
Insurance	Fixed	Include $400 per month as required store overhead.	Leaving it out because it does not tie to product sales.
Software Subscriptions	Fixed	Include $300 per month as operating overhead.	Mixing recurring software with one-time system setup spending.
Store Manager Payroll	Fixed	Include the $70,000 annual salary as base staffing overhead.	Modeling manager pay as variable when sales rise or fall.
Optician, Sales Associate, Administrative Assistant, and Stylist Payroll	Semi-fixed	Increase payroll in steps as full-time equivalent staffing changes by year.	Spreading added headcount smoothly across each sale.
Wholesale Cost of Products	Variable	Apply 12% of first-year revenue to goods sold.	Using a flat dollar amount instead of tying it to sales.
Payment Processing Fees	Variable	Apply 5% of first-year revenue to card and payment volume.	Putting processing fees in fixed overhead.

How does break-even shift from a lean opening to a full-service optical store?

Scenario table

Break-even moves up as you add payroll and service depth. The lean case has the lightest cost base, while the full-service case needs the most revenue because staffing is heavier, even with a better margin mix.

Planning figures only; actual break-even will move with traffic, product mix, and payroll.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean opening	$25.1k	$4.3k	$20.9k	83%	$0	Lowest payroll gives the fastest break-even, but traffic and add-on sales still have to hold.
Standard storefront	$28.9k	$4.7k	$24.2k	83.7%	$0	Mid-tier staffing needs steadier foot traffic, or the extra admin and stylist cost drags margin.
Full-service setup	$39.6k	$5.6k	$34.0k	85.8%	$0	Best margin, but the heavier payroll means it needs stronger traffic and more contact lens and frame sales.

What breaks the break-even plan for this optical store?

Stress test

The plan has little room for miss. A 10% revenue dip leaves a $21k monthly gap, and a 10% fixed-cost jump pushes break-even to about $276k. Watch slower foot traffic, deeper discounting, payroll creep, and thin contact lens margin.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$251k	$0 gap	Base case clears break-even with no cushion.
Revenue shortfall	Monthly revenue falls 10% to about $226k.	$251k	$21k gap	Slower foot traffic can push monthly cash flow below zero.
Fixed-cost pressure	Fixed overhead rises 10% to about $229k a month.	$276k	$21k gap	Payroll creep or rent pressure raises the break-even bar fast.
Margin pressure	Variable expenses rise from 17% to 20%.	$261k	$8k gap	Discounting and thin contact lens margin cut contribution.
Combined pressure	Revenue drops 10%, fixed costs rise 10%, and variable expenses rise to 20%.	$286k	$48k gap	This is the stress case that burns through cushion fastest.

What must you prove before you sign the lease and hire for this optical store?

Founder checklist

Test the store against break-even math before you sign the lease or buy opening inventory. If 500 weekly visitors, 15.0% conversion, and the Year 1 mix do not cover about $20.9K a month in overhead plus the $78K opening build, wait.

1Traffic Proof500/wk

Verify the site can draw 500 weekly visitors, because that is the base demand needed before any break-even math works.

2Conversion Gate15.0%

Check that launch conversion reaches 15.0% of visitors to buyers; at lower conversion, the store will miss the buyer count needed for break-even.

3Fixed Load$20.9K/mo

Keep Year 1 rent, utilities, insurance, software, repairs, supplies, and base payroll near $20.9K a month before owner pay.

4Unit Margin83% CM

The weighted unit price is $166.50, and after 12% wholesale cost plus 5% payment fees, about 83% remains for fixed costs.

5Cash Reserve$843K

Keep at least $843K in cash through Month 12, and make sure the $78K opening build is already funded so setup does not squeeze operating cash.

6Staff RampMonth 10

Do not add the stylist or other extra labor before Month 10 break-even if traffic lags, because more headcount pushes burn ahead of sales.