When do you break even?
Fixed costs divided by what each sale contributes. The answer is in units and in revenue, because those are two different conversations.
When do you break even?
The number of sales a month that covers your fixed costs. Contribution is what each sale leaves behind once the cost of delivering it is paid.
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Questions people ask
How do I work out my breakeven point?
Divide your fixed costs by the contribution each sale makes, which is your price minus the variable cost of delivering it. This page does that arithmetic and shows the revenue figure it corresponds to.
What counts as a fixed cost?
Anything you pay whether or not you sell anything: rent, software, insurance, a salary. Variable costs are the ones that only happen because a sale happened.