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Key Terms
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Break-even point  The level of sales at which profit is zero. The break-even point can also be defined as the point where total sales equals total expenses or as the point where total contribution margin equals total fixed expenses.
Contribution margin method  A method of computing the break-even point in which the fixed expenses are divided by the contribution margin per unit.
Contribution margin ratio (CM ratio)  A ratio computed by dividing contribution margin by dollar sales.
Cost-volume-profit (CVP) graph  A graphical representation of the relationships between an organization's revenues, costs, and profits on the one hand and its sales volume on the other hand.
Degree of operating leverage  A measure, at a given level of sales, of how a percentage change in sales will affect profits. The degree of operating leverage is computed by dividing contribution margin by net operating income.
Equation method  A method of computing the break-even point that relies on the equation Sales = Variable expenses + Fixed expenses + Profits.
Incremental analysis  An analytical approach that focuses only on those costs and revenues that change as a result of a decision.
Margin of safety  The excess of budgeted (or actual) dollar sales over the break-even dollar sales.
Operating leverage  A measure of how sensitive net operating income is to a given percentage change in dollar sales.
Sales mix  The relative proportions in which a company's products are sold. Sales mix is computed by expressing the sales of each product as a percentage of total sales.
Variable expense ratio  A ratio computed by dividing variable expenses by dollar sales.







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