Marginal costing splits costs based on

Marginal costing splits costs based on

• A. Function (production or non-production)
• B. Time (period vs product)
• C. Department (sales vs manufacturing)
• D. Behaviour (variable or fixed)

Answer: (D)

The main idea being tested is how costs are categorized by how they behave as activity changes. In marginal costing, costs are split into variable and fixed. Variable costs vary with the level of output and form the cost that changes when you produce one more unit. Fixed costs, on the other hand, do not change with short-term changes in output and are treated as period costs rather than being allocated to each unit of production. This distinction is why the correct choice is that costs are split by behaviour (variable versus fixed). For example, materials, direct labour, and variable overhead typically rise as more units are produced, while items like rent or salaries of permanent staff stay the same in the short term. Other ways of classifying costs—by function, by time, or by department—aren’t the basis used in marginal costing, which is why those approaches aren’t the focus for this method. This behavioural split underpins the calculation of contribution per unit and supports short-term decision-making such as pricing or special orders.

The main idea being tested is how costs are categorized by how they behave as activity changes. In marginal costing, costs are split into variable and fixed. Variable costs vary with the level of output and form the cost that changes when you produce one more unit. Fixed costs, on the other hand, do not change with short-term changes in output and are treated as period costs rather than being allocated to each unit of production. This distinction is why the correct choice is that costs are split by behaviour (variable versus fixed).

For example, materials, direct labour, and variable overhead typically rise as more units are produced, while items like rent or salaries of permanent staff stay the same in the short term. Other ways of classifying costs—by function, by time, or by department—aren’t the basis used in marginal costing, which is why those approaches aren’t the focus for this method. This behavioural split underpins the calculation of contribution per unit and supports short-term decision-making such as pricing or special orders.