What bypasses the overhead allocation questions and focuses on the relation of variable cost variances?

Question

Options

• AInternal revenue code method
• BContribution margin method
• CDirect costing method
• DRatemaking method

• A
  6% (2)
• B
  81% (29)
• C
  3% (1)
• D
  11% (4)

Explanation

Contribution margin isolates variable costs from fixed overhead by expressing profit as Sales minus Variable Costs, which means it sidesteps the contentious debate over how to allocate fixed overhead and instead zeroes in on how variable cost variances directly affect profitability.

Why the distractors are wrong:

• A (Internal Revenue Code method): This refers to tax-law-based accounting treatments for specific assets or inventory - it has no direct role in management cost variance analysis.
• C (Direct costing method): Though closely related (direct/variable costing excludes fixed overhead from product costs), it describes an inventory valuation approach, not the analytical framework that highlights the relationship among variable cost variances - that distinction belongs to the contribution margin method.
• D (Ratemaking method): Used in regulated industries (utilities, insurance) to set pricing rates - it is not a cost variance analysis technique.

Memory tip: Think of "contribution margin" as the method that contributes only variable costs to the conversation - if fixed overhead isn't part of the formula (Sales − Variable Costs = CM), overhead allocation questions simply never come up.

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