Eco-Friendly Packaging Break-Even Analysis: $44K Monthly Sales

Fixed costs $12.1K/mo Core overhead

Contribution margin 84.7% After direct costs

Break-even revenue $14.2K/mo Revenue floor

Break-even timing Month 2 Launch ramp

Break-even calculator

Test monthly revenue against variable expenses and fixed costs to see the break-even point.

Lean Base Full

Monthly revenue Revenue is the monthly sales base that covers direct costs and overhead. $ Low sales High sales Variable expenses These are the direct costs that move with each sale or unit shipped. $ Low direct High direct

Money available to cover fixed costs $137,638 $161,250 revenue - $23,612 variable expenses

Margin ratio

85%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly overhead your contribution margin has to cover. $ Low overhead High overhead

Break-even chart Revenue Total costs

Which packaging expenses stay fixed, and which move with sales volume?

Cost classification

Break-even works only if each expense is sorted by behavior. Fixed items set the monthly hurdle, while unit-driven inputs reduce contribution margin every time another package ships.

Expense	Cost	Break-Even Treatment	Common Mistake
Warehouse lease at $6,500 per month	Fixed	Add to the monthly break-even hurdle for the relevant planning range.	Spreading rent per unit and hiding the real cash floor.
E-commerce platform fees at $2,200 per month	Fixed	Include in fixed overhead before calculating required monthly contribution.	Treating the platform bill as sales-driven when it is modeled as monthly overhead.
Utilities at $750 per month	Semi-variable	Split into a base amount plus usage if warehouse activity changes materially.	Putting the full utility bill into fixed overhead without a usage check.
Digital advertising at $5,000 per month	Semi-fixed	Model as a planned monthly spend that can step up when growth targets rise.	Assuming ad spend rises smoothly with every unit sold.
Compostable mailer inputs at $0.104 per unit	Variable	Subtract from unit price to calculate contribution per mailer sold.	Treating freight, duties, payment fees, and quality checks as overhead.
Recycled box inputs at $0.31 per unit	Variable	Deduct from each box sale before covering fixed overhead.	Leaving inbound freight and import duties out of unit economics.
Biodegradable filler inputs at $1.53 per unit	Variable	Use as the unit-driven deduction from filler revenue in break-even math.	Counting supplier quality control as fixed instead of unit-driven.
Custom branded tape inputs at $1.64 per unit	Variable	Reduce contribution by the full per-unit input load, including customization.	Classifying customization surcharge as overhead instead of per-unit expense.

How does break-even change from a lean launch mix to base and full capacity?

Scenario table

Lean output misses break-even because fixed costs outrun early sales. By the base case, contribution covers fixed costs and leaves a small cushion, and full capacity pushes break-even risk much lower as the same overhead is spread across more revenue.

Planning assumptions only; actual break-even will move with sales timing, staffing ramp, and product mix.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean launch mix	$30,417	$4,663	$37,383	84.7%	-$11,629	Still below break-even; fixed costs outrun sales.
Base year 2 mix	$75,875	$11,383	$55,717	85.0%	$8,776	Clears break-even by about $8.8k per month.
Full-capacity year 5 mix	$425,521	$60,071	$78,217	85.9%	$287,233	Break-even pressure drops sharply at this scale.

What breaks the break-even plan for eco-friendly packaging?

Stress test

This plan is tight. A 10% sales miss, a 5-point margin squeeze, or 10% fixed-cost creep can push break-even out fast.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$44,154	$0 gap	No cushion, so any miss matters.
Revenue shortfall	Monthly demand runs 10% below plan.	$44,154	$4,415 gap	A small sales slip leaves a fast cash hole.
Fixed-cost pressure	Fixed costs rise 10%.	$48,570	$4,416 gap	Overhead creep pushes the floor up.
Margin pressure	Freight, waste, and rework lift variable costs by 5 points.	$46,925	$2,771 gap	Cost leaks widen the gap before volume does.
Combined pressure	Demand is 10% below plan, fixed costs rise 10%, and variable costs rise 5 points.	$51,616	$11,877 gap	Weak demand plus cost creep breaks the model.

What should you verify before signing the warehouse lease for this packaging business?

Founder checklist

Don't sign the warehouse lease or buy bulk stock until the mix clears the model math. You want supplier quotes, demand tests, and ad conversion to support about $44,200 a month in revenue and cover the fixed load.

1Unit costs84.7% gross margin

Verify quotes still land at 10.4¢ mailers, 31¢ boxes, $1.53 fillers, $1.64 tape, and 5.6¢ bags; that keeps Year 1 margin believable.

2Break-even sales$44.2K/mo

Use early orders to prove about $44,200 in monthly revenue before you lock the warehouse lease, because that is the break-even line in this model.

3Fixed load$17.8K/mo

Check the $6,500 warehouse lease inside the full $17,800 monthly overhead before you commit, because fixed cost is what the order book has to outrun.

4Payroll ramp$19.6K/mo

Stage hiring against Year 1 payroll of about $19,583 a month so labor grows with orders, not ahead of them.

5Cash cushion$1.198M

Keep the Month 1 cash need of $1.198 million separate from operating break-even, because capex and working capital hit before revenue scales.

6Ad test$5.0K/mo

Confirm lead times and minimum order quantities before bulk buys, and only keep the $5,000 monthly ad budget if conversion data supports the order flow.