Costs that don't change with sales: rent, software, salaries. Use one month or the whole project.
Materials, shipping, fees per sale.
Over the same period as your fixed costs.
Break-even at 80 units.
Break-even units
80
$3,200.00 in sales covers $2,000.00 of fixed costs
Contribution margin = price − variable cost. Break-even units = fixed costs ÷ contribution margin, rounded up. Units for a target profit = (fixed costs + target) ÷ contribution margin.
Free Break-Even Calculator by Hiyaly