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Break-even and the profit goal divide by positive contribution margin. With multiple products, quantities form a fixed sales bundle; bundles are rounded up. Zero or negative margin makes the threshold unreachable.

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quantity = round up((fixed costs + profit target) ÷ positive contribution margin)product bundle: contribution margin = sum of quantity × (price − cost)Worked example
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Break-even and the profit goal divide by positive contribution margin. With multiple products, quantities form a fixed sales bundle; bundles are rounded up. Zero or negative margin makes the threshold unreachable.
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Break-even and the profit goal divide by positive contribution margin. With multiple products, quantities form a fixed sales bundle; bundles are rounded up. Zero or negative margin makes the threshold unreachable.