Final answer:
To prepare January and February income statements using variable costing, determine the cost structure of the firm, calculate costs using given formulas, and create a table showing relevant cost data.
Step-by-step explanation:
In order to prepare January and February income statements using variable costing, follow the steps below:
- Determine the cost structure of the firm by calculating total fixed costs and variable costs.
- Calculate total cost, average variable cost, average total cost, and marginal cost using the formulas given in the Production, Costs, and Industry Structure chapter (Table 8.8).
- Create a table that shows the company's output, total cost, marginal cost, average cost, variable cost, and average variable cost.
Average variable costs are typically U-shaped and if a firm's average variable cost of production is lower than the market price, the firm would be earning profits.