#2683 · Agriculture & Pets Tool

Terrarium Break-Even Price Calculator

Set a break-even selling price for a terrarium build using materials, labor, overhead, transaction fees, and expected loss rate.

Calculator

Build cost and sale assumptions

Adjusted cost = (materials + labor hours × rate + overhead) ÷ (1 − loss%). Break-even price = adjusted cost ÷ (1 − selling fee%).

The result is the minimum price that recovers the entered economic costs under the selected fee and loss assumptions.

Taxes, shipping collected from the buyer, and market demand are not included unless you enter them as overhead or materials.

With $180 materials, 6 hours at $25, $35 overhead, 5% fees, and 3% loss, break-even price is about $396.09.

Measure with the same unit every time so changes are comparable.
Recalculate when animal count, body weight, enclosure layout, or supplier pricing changes.
Treat the result as a planning estimate and follow product labels and professional guidance where safety is involved.
Keep a written log of actual use and cost to improve the next estimate.

Why is the selling fee divided out of the price?

Because a percentage fee is taken from revenue; the price must be high enough that the remainder covers cost.

Should I include my own labor?

Yes, if break-even should compensate your time rather than only reimburse cash expenses.

Where should shipping supplies be entered?

Include packaging you pay for in materials or overhead, depending on how you track costs.

What happens if fee plus loss rates are high?

The required price rises quickly. Inputs are limited below 100% so the calculation remains finite.

Is the 10% margin price a 10% markup?

No. It is a 10% margin on selling price, which differs from adding 10% to cost.

Variable	Meaning	Unit
Base cost	Materials + valued labor + overhead	$
Loss rate	Allowance for expected loss	%
Selling fee	Fee charged on revenue	%
Break-even price	Revenue needed to recover adjusted cost	$