Graffiti Art Supply Store Break-Even: About $20K Monthly Sales

Fixed costs $16.2K/mo Base monthly burn

Contribution margin 81% After variable costs

Break-even revenue $20.0K/mo Cover fixed base

Break-even timing Month 9 Model break-even

Break-even calculator

Use this calculator to test monthly revenue, variable expenses, and fixed costs against break-even.

Lean Base Full

Monthly revenue Revenue is the pool that covers variable and fixed costs. $ Low sales Peak sales Variable expenses These are costs that rise with sales, like inventory and fees. $ Low costs High costs

Money available to cover fixed costs $102,989 $124,083 revenue - $21,094 variable expenses

Margin ratio

83%

Covers fixed costs

Yes

Fixed monthly costs These are monthly costs the store pays even when sales are soft. $ Lean overhead Heavy overhead

Break-even chart Revenue Total costs

Which expenses are fixed and which move with sales in a graffiti art supply store?

Cost classification

Break-even is only reliable when steady overhead stays separate from sales-linked spend. Treat inventory at 14% of first-year sales and packaging and merchant fees at 5% as variable, then cover fixed and step-up payroll.

Expense	Cost	Break-Even Treatment	Common Mistake
Retail Store Rent	Fixed	Use $3,500 per month as baseline overhead from Month 1 through Month 60.	Spreading rent across units sold and understating slow-month break-even.
Utilities and Internet	Fixed	Use $450 per month as fixed under the source assumptions.	Adding a usage driver when the model gives no variable utility rate.
Marketing and Community Events	Semi-fixed	Use $800 per month, but review it as a step budget tied to local events and store traffic pushes.	Treating all marketing as variable and cutting the very spend that drives visits.
POS Software Subscription	Fixed	Use $150 per month as recurring store operating overhead.	Linking the subscription to revenue instead of keeping it in monthly overhead.
Lead Artist Consultant	Semi-fixed	Start with a $42,000 salary at 1.0 FTE, then step up when staffing rises to 1.5 FTE and 2.0 FTE later.	Modeling the role as variable commission and missing payroll jumps.
Sales Associate	Semi-fixed	Start with a $35,000 salary at 1.0 FTE, then add capacity as FTE rises to 1.5, 2.0, 2.5, and 3.0.	Smoothing payroll as a sales percentage instead of showing hiring steps.
Inventory Wholesale Cost	Variable	Use 14% of first-year sales in contribution margin because it moves with products sold.	Putting inventory into fixed overhead and overstating margin per order.
Packaging and Merchant Fees	Variable	Use 5% of first-year sales because fees rise with transactions and order volume.	Ignoring card fees and making the break-even point look too low.

How does break-even shift from a lean store to a base and full graffiti art supply format?

Scenario table

Lean format is close to break-even because fixed costs stay light. As the store scales, the contribution margin improves, but higher payroll and overhead also push the break-even bar higher.

Planning outputs only; actual sales and margins can land higher or lower.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean store build	$20,200	$3,800	$16,200	81%	-$19,000	Break-even is about $20,000 a month, so the cushion is thin.
Base store build	$124,100	$21,100	$19,100	83%	$969,000	Break-even is about $23,000 a month, so this case has a wide cushion.
Full store build	$755,100	$113,300	$25,500	85%	$7,322,000	Break-even rises to about $30,000 a month, but the sales base still covers it well.

What breaks the break-even plan for this graffiti art supply store?

Stress test

The launch plan has only about a $200 monthly cushion, so small drops in traffic or a small cost hike can erase it. A 10% sales dip, a 3-point margin slip, or both together push the store into loss fast.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	Base case holds at $20,200 revenue and $16,200 fixed costs.	$20,000	$200 cushion	Very little room for a weak opening month.
Revenue shortfall	Monthly revenue runs 10% below plan at about $18,200.	$20,000	$1,800 gap	A small traffic miss wipes out the cushion.
Fixed-cost increase	Fixed monthly costs rise 10% to $17,820.	$22,000	$1,800 gap	Higher rent or added payroll pushes break-even past launch sales.
Margin pressure	Variable expenses rise 3 points to 22% of revenue.	$20,769	$569 gap	One cost step up nearly erases the launch cushion.
Combined pressure	Revenue falls 10%, variable expenses rise to 22%, and fixed costs rise 10%.	$22,846	$4,646 gap	That mix creates about a $3,600 monthly loss.

Is this graffiti art supply store ready to sign the lease and order opening inventory?

Founder checklist

Don’t lock the lease or buy full opening stock until traffic, margins, and cash all clear the model. Month 9 break-even is the target, but the plan still shows a $806K minimum cash trough in Month 2, so the first commitment has to survive early burn.

1Traffic test8-25 buyers/day

Test weekday traffic against the 35% visitor-to-buyer rate before you add payroll, because the Year 1 range only works if visitors turn into sales.

2Lease load$5.2K/mo

Check that the $3,500 rent and the rest of the fixed base fit a $5,200 monthly overhead before you sign.

3Margin check81% CM

Use the 14% inventory cost and 5% packaging and merchant fees to confirm each sale leaves enough contribution before payroll.

4Opening stock$40K cap

Confirm suppliers can fill opening orders and keep first inventory near the planned $40,000 cap unless demand clearly runs hotter.

5Payroll ramp$132K/yr

Hold Year 1 payroll at $132,000, or $11,000 a month, until weekday traffic proves the store can carry it.

6Cash reserve$806K

Protect launch cash because the model dips to a minimum of $806,000 in Month 2, and Month 9 break-even is not instant relief.