ACCG100 Lecture Notes - Lecture 10: Fixed Cost, Contribution Margin
Document Summary
Costs that vary directly and proportionately with changes in activity level: eg materials used to produce goods, cost per unit is constant; total cost increases with volume increase. Impact on sales volume and profit of increased costs. Sales level needed to make a profit. Costs and revenues are linear within the relevant range. All costs are identifiable as variable or fixed. Costs are affected only by changes in activity level. Sales mix is constant if there is more than one product (not accg100) Cm = amount of revenue remaining after deducting variable costs. Can be expressed as a total amount or on a per unit basis cm/unit = unit selling price unit variable costs. Cm is used to understand how much of a margin you have to use in offset against fixed costs. Can be expressed as a ratio : cm/unit. This indicates the proportion of each sales dollar available to cover fixed costs and earn a profit.