Tech Gadget Store Break-Even Analysis: Month 37 Sales Target

Fixed costs $7.0K Store overhead

Contribution margin 81% After variable costs

Break-even revenue $27.2K Sales to cover base

Break-even timing Month 37 Model turns positive

Break-even calculator

See whether monthly revenue can cover variable costs and the store's fixed monthly costs.

Lean Base Full

Monthly revenue Sales set the pool that covers costs and profit. $ Low sales High sales Variable expenses Use direct costs that rise with sales, like inventory and fees. $ Low costs High costs

Money available to cover fixed costs $30,096 $36,000 revenue - $5,904 variable expenses

Margin ratio

84%

Covers fixed costs

Yes

Fixed monthly costs Use the monthly cost base the store must cover. $ Lean overhead High overhead

Break-even chart Revenue Total costs

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

Cost classification

Break-even gets reliable only when rent, payroll, inventory, card fees, and store systems land in the right buckets. Put variable items against each sale, and keep recurring overhead in the monthly fixed base.

Expense	Cost	Break-Even Treatment	Common Mistake
Commercial Rent	Fixed	Include $5,000 per month in store overhead from Month 1 through Month 60.	Treating rent as sales-driven because traffic rises.
Utilities	Semi-variable	Start with the $600 monthly base, then review usage as store hours, visitors, and equipment load grow.	Modeling the full utility bill as variable with revenue.
POS, CRM, and E-commerce Platform Fees	Fixed	Include $450 per month in recurring systems overhead.	Putting subscription fees into card fees or order-level expenses.
Store Security and Cleaning Services	Fixed	Include $700 per month as recurring store overhead.	Leaving routine store upkeep out of the break-even base.
Store Manager and Tech Support Payroll	Semi-fixed	Include $110,000 per year before staffing taxes and benefits, then step up only if capacity changes.	Spreading payroll as a percentage of sales.
Sales Associate Payroll	Semi-fixed	Model $35,000 per FTE, with staffing rising from 2.0 FTE in the first year to 4.0 FTE by the fifth year.	Keeping labor flat while visitor volume scales.
Core and Accessory Inventory Acquisition	Variable	Apply 9.0% of sales for core inventory and 3.0% for accessory inventory in the first year.	Classifying inventory purchases as fixed monthly overhead.
Payment Processing and Performance Marketing	Variable	Apply 2.5% of sales for payment processing and 4.5% for performance marketing in the first year.	Ignoring card fees and paid traffic when calculating contribution margin.

How does break-even shift from a lean launch to a full-service tech gadget store?

Scenario table

As staffing scales from Year 1 to Year 5, fixed costs rise from $22,000 to $32,000 a month. CM ratio, the share of sales left after variable costs, improves from 81.0% to 86.2%, but the higher payroll still lifts the sales floor.

Planning view only; these are modeled assumptions, not a guarantee of future results.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean launch	$27,160	$5,160	$22,000	81.0%	$0	Lowest fixed burden, so a small sales miss matters fast.
Base store	$34,809	$5,711	$29,100	83.6%	$0	Better margin cover helps, but payroll still keeps break-even tight.
Full-service storefront	$37,123	$5,123	$32,000	86.2%	$0	Strongest margin cover, yet the biggest staff load raises the sales floor.

What pushes this gadget store off break-even?

Stress test

This store is only barely above break-even in the base plan, at about $27,200 in monthly revenue against $22,000 of fixed costs. A small drop in traffic, higher overhead, or margin slip can turn that into a monthly loss.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$27,200	$0 cushion	Base case leaves almost no cushion.
Revenue shortfall	Monthly revenue falls 10% to about $24,400.	$27,200	$2,800 gap	Slower foot traffic creates a monthly loss.
Fixed-cost rise	Fixed overhead rises 10% to $24,200 a month.	$29,900	$2,700 gap	Higher overhead pushes break-even up fast.
Margin pressure	Variable expenses rise to 22%, so contribution margin falls to 78%.	$28,200	$1,000 gap	Card fees, markdowns, and returns eat margin.
Combined pressure	Revenue falls 10%, fixed overhead rises 10%, and variable expenses rise to 22%.	$31,000	$6,600 gap	That mix creates a steep monthly loss.

Can this store clear break-even before you sign the lease and order opening inventory?

Founder checklist

Test the lease and opening inventory against the Year 1 demand model, not optimism. If traffic, 40% conversion, and an 81% contribution margin do not cover $22,000 in monthly fixed costs, wait and keep optional hiring and inventory light.

1Traffic proof760 visits/wk

Verify the store can actually draw the Year 1 traffic mix of 80 Monday, 85 Tuesday, 90 Wednesday, 95 Thursday, 120 Friday, 180 Saturday, and 110 Sunday before you sign a lease.

2Conversion test40% conv

Make sure at least 40% of visitors buy, because that is the model's opening conversion threshold before break-even gets believable.

3Fixed load$22K/mo

Confirm rent, utilities, insurance, software, security, and cleaning stay near $7,000 a month and wages hold near $15,000 a month, so total fixed cost stays at $22,000.

4Margin check81% CM

Keep core inventory near 9% of sales, accessory inventory near 3%, and payment plus marketing near 7% so contribution margin stays about 81% and break-even revenue stays close to $27.2K a month.

5Staff ramp4 FTE

Staff the opening only if the volume can support one manager, two sales associates, and one tech support role, since Year 1 payroll already runs about $180,000 a year.

6Cash cushion$234K

Hold enough runway to cover the Month 37 cash low point of about $234,000, and separate startup capex from the monthly break-even gap so hiring can stay optional if traffic or conversion lags.