Variable costs are corporate expenses that vary in direct proportion to the quantity of output
Variable cost is an expense that changes in relation to a company s business activity. As opposed to fixed costs, which remain constant, these costs arise in direct proportion to a business s output, increasing and decreasing along with the volume of production.  Variable costs can include direct material costs or direct labor costs necessary to complete a certain project. For example, a company may have variable costs associated with the packaging of one of its products. As the company moves more of this product, the costs for packaging will increase. Variable costs are those costs that vary depending on a company's production volume; they rise as production increases and fall as production decreases. Variable costs differ from fixed costs such as rent, advertising, insurance and office supplies, which tend to remain the same regardless of production output Variable costs are corporate expenses that vary in direct proportion to the quantity of output. Unlike fixed costs, which remain constant regardless of output, variable costs are a direct function of production volume, rising whenever production expands and falling whenever it contracts.  A variable cost is a cost that changes in relation to variations in an activity. In a business, the activity is frequently production volume, with sales volume being another likely triggering event. Thus, the materials used as the components in a product are considered variable costs, because they vary directly with the number of units of product produced. Variable costs are costs that change in proportion to the good or service that a business produces. Variable costs are also the sum of marginal costs over all units produced. They can also be considered normal costs. Fixed costs and variable costs make up the two components of total cost. Direct costs, however, are costs that can easily be associated with a particular cost object. However, not all variable costs are direct costs. Variable costs are expenses that fluctuate proportionally with the quantity of output. Variable costs are directly tied to the activities of producing volume, which rises when those activities increase and falls when activities decrease. This effect can be related to materials, labor, and sales commissions. Definition of Variable Cost. Variable costs are expenses that fluctuate proportionally with the quantity of output. Variable costs are directly tied to the activities of producing volume, which rises when these activities increase and falls when activities decrease. variable expenses. Expenses that vary with some activity. For example, sales commissions expense and cost of goods sold will be greater when sales are greater; electricity expense will decrease when machine hours are reduced. Business expenses are categorized in two ways: fixed expenses and variable expenses. Fixed expenses or costs are those that do not fluctuate with changes in production level or sales volume. 
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what is variable expenses