Using Cost Information for Planning, Control, and Internal Decisions

This chapter covers the internal accounting tools used for planning, control, and decision support. BAR questions in this area often require you to identify the right cost framework before you interpret a variance, recommend an action, or evaluate performance.

In This Chapter

• Cost Classifications explains how fixed, variable, and mixed cost behavior affects analysis and planning.
• Cost Accumulation Systems compares the main ways organizations collect and assign costs.
• Variance Analysis covers the variance structure used to explain departures from plan.
• Volume, Price, and Mix Effects shows how changes in activity and composition shift operating results.

How to Use This Chapter

• Read this chapter when BAR questions feel operational rather than purely financial-reporting based.
• Focus on which cost framework best matches the decision being tested.
• Revisit it whenever a variance question is missed because the underlying driver was identified incorrectly.

In this section

• Classifying Fixed, Variable, and Mixed Costs for Better Decisions
  How BAR uses fixed, variable, and mixed cost behavior in planning and decision support.
• Comparing Job Order, Process, and Activity-Based Cost Systems
  How BAR compares job order, process, and activity-based cost accumulation systems.
• Explaining Performance with Material, Labor, Overhead, and Sales Variances
  How BAR uses variance analysis to explain departures from plan and isolate operating drivers.
• Separating Volume, Price, and Mix Effects in Operating Results
  How BAR separates activity, pricing, and sales-mix effects when operating results shift.