Chapter 20

Variable Costing for Management Analysis

Warren / Reeve / Duchac


Exercise 20-1
Exercise 20-2
Exercise 20-3
Exercise 20-18
Problem 20-1A
Problem 20-2B

Under variable costing system, product and period costs are divided into two groups: variable and fixed costs. Variable costing approach treats all variable costs as inventory costs and all fixed costs as period costs.

Absorption Costing
Inventory costs
  • Direct materials 
  • Direct labor 
  • Variable overhead 
  • Fixed overhead 
Period costs (expensed when incurred) 
  • SG&A expenses 


Variable Costing 
Inventory costs

  • Direct materials
  • Direct labor
  • Variable overhead
  • Variable SG&A expenses

Period costs (expensed when incurred)

  • Fixed overhead
  • Fixed SG&A expenses