Slime Shop Break-Even Analysis: $132K Monthly Revenue

Fixed costs $10.9K/mo Launch overhead base

Contribution margin 82.5% After variable costs

Break-even revenue $13.2K/mo Monthly target sales

Break-even timing Month 38 Cumulative break-even

Break-even calculator

Test monthly revenue, variable expenses, and fixed costs against break-even for a slime retail shop.

Lean Base Full

Monthly revenue Revenue sets the margin available to cover fixed costs each month. $ Low sales High sales Variable expenses These rise with sales, like product cost, payment fees, and promo spend. $ Lean costs Heavy costs

Money available to cover fixed costs $5,600 $6,500 revenue - $900 variable expenses

Margin ratio

86%

Covers fixed costs

$5,300 short

Fixed monthly costs This is the monthly overhead contribution margin must cover. $ Light overhead Heavy overhead

Break-even chart Revenue Total costs

Which toy slime store expenses are fixed and which move with sales?

Cost classification

Break-even gets reliable only when sales-linked costs stay out of monthly overhead. Here, the first-year variable load is 17.5% of revenue before payroll and rent.

Expense	Cost	Break-Even Treatment	Common Mistake
Store Lease	Fixed	Use $2,500 per month as base overhead.	Tying rent to sales volume.
Utilities	Semi-fixed	Start with $400 per month, then step up only when store use rises.	Treating every utility dollar as per-order spend.
Point-of-sale system subscription	Fixed	Use $100 per month as software overhead.	Blending the subscription with card processing fees.
Sales Associate roles	Semi-variable	Model staffing as it rises from first year to mature year volume.	Keeping labor flat while visitor traffic grows.
Cost of Pre-Made Slimes & Kits	Variable	Apply 10.0% of first-year revenue, then 9.5% in the second year.	Putting product cost into fixed overhead.
Cost of Slime Bar Raw Materials	Variable	Apply 3.0% of first-year revenue, then 2.8% in the second year.	Ignoring add-in material use as sales grow.
Payment Processing Fees	Variable	Apply 2.5% of first-year revenue as a sales-linked fee.	Counting card fees as a fixed software charge.
Marketing & Promotional Materials	Variable	Apply 2.0% of first-year revenue for break-even math.	Leaving promotion spend out of contribution margin.

How do lean, base, and full slime shop scenarios change break-even?

Scenario table

Higher AOV helps, but added payroll raises the hurdle, so break-even only improves if traffic and conversion outpace labor growth. The base case is the best check on whether sales volume can cover fixed costs.

Planning assumptions only; actual break-even will move with traffic, conversion, and staffing.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean shop setup	$13,212	$2,312	$10,900	82.5%	$0	Revenue just covers fixed costs, so the cushion is thin.
Base case	$19,287	$2,970	$16,317	84.6%	$0	Higher sales help, but payroll still keeps break-even tight.
Full build	$22,137	$3,321	$18,817	85.0%	$0	More revenue improves coverage, but fixed labor still leaves little room.

What happens if traffic, rent, or supplies move against the slime shop break-even plan?

Stress test

The Year 1 plan breaks even at about $13.2k a month, but there is no cushion at that point. A 10% sales drop, a 10% fixed-cost bump, or higher material pressure each pushes the shop back into a loss.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$13,212	$0 cushion	Break-even sits right on plan, so there is no room for error.
Revenue shortfall	Sales are 10% lower than planned.	$13,212	$1,321 gap	Weak weekday traffic quickly creates a cash hole.
Fixed-cost pressure	Monthly fixed costs rise 10% to $11,990.	$14,533	$1,321 gap	Rent or payroll creep pushes break-even above the plan.
Margin pressure	Variable expenses rise to 22.5% of sales.	$14,065	$853 gap	Shrinkage or kit cost pressure eats most of the cushion.
Combined pressure	Sales fall 10%, variable expenses rise to 22.5%, and fixed costs rise 10%.	$15,471	$3,580 gap	Stacked pressure leaves the shop well below break-even.

Should I open a slime shop before signing the lease?

Founder checklist

Don’t sign the lease until Year 1 demand can cover the fixed load and the opening cash plan. This model breaks even in Month 38 and needs $556,000 of minimum cash in Month 42, so the shop needs patience and runway, not just a good launch day.

1Traffic proof415 visits/wk

Confirm the shop can באמת pull about 415 weekly visitors and convert 15% into buyers, or the lease will be ahead of demand.

2Lease load$10.9K/mo

Check that $2,500 rent plus the other fixed costs and $90,000 of Year 1 payroll can be covered by store sales before you hire more.

3Order margin86% CM

Here’s the quick math: Year 1 pricing and mix put AOV near $18.60, with about $2.63 of variable cost per order, so contribution stays near 86%.

4Opening spend$52K upfront

Verify the $25,000 renovation, $7,000 fixtures, $3,000 POS setup, $2,500 signage, $1,500 cameras, $2,000 office equipment, $1,000 marketing, and $10,000 inventory all fit the opening cash plan.

5Payroll ramp$90K yr1

Make sure the manager, full-time associate, and part-time associate match real foot traffic, because $7,500 a month in payroll gets heavy fast if sales start slow.

6Cash runway$556K min

Plan for Month 38 break-even, a 55-month payback, and a $556,000 minimum cash trough in Month 42 before you commit to the lease.