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One of those cost profiles is a variable cost that only increases if the quantity of output also increases. While a fixed cost remains the same over a relevant range, a variable cost usually changes with every incremental unit produced. Variable costs are a direct input in the calculation of contribution margin, the amount of proceeds a company collects after using sale proceeds to cover variable costs. Every dollar of contribution margin goes directly to paying for fixed costs; once all fixed costs have been paid for, every dollar of contribution margin contributes to profit. Marginal costs can include variable costs because they are part of the production process and expense.<\/p>\n<\/p>\n
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Managers can control variable costs more easily in the short-run by adjusting output. These types of expenses are composed of both fixed and variable components. They are fixed up to a certain production level, after which they become variable. It’s easy to separate the two, as fixed costs occur regularly while variable ones change as a result of production output and the overall volume of activity that takes place.<\/p>\n<\/p>\n
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For example, let\u2019s assume that it costs a bakery $15.00 to bake a cake\u2014$5.00 for raw materials such as sugar, milk, and flour, and $10.00 for the direct labor involved in baking 1 cake. The table below shows how the variable costs change as the number of cakes baked vary. In most organizations, the bulk of all expenses are fixed costs, and represent the overhead that an organization must incur to operate on a daily basis. Fixed costs must be incurred, no matter what the activity level of the entity may be, while variable costs are only incurred if there is some amount of activity.<\/p>\n<\/p>\n