Accounting Chapter 15 2 min read

Accounting Ch15. Standard Costing and Variance Analysis — Taking Management Accounting to the Next Level

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OIYO Editorial Contributor
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Ch 15. Standard Costing and Variance Analysis

Telling a manager “last month’s costs came in at 100,000"isnotenoughinformation.Saying"theoriginalplanwas100,000" is not enough information. Saying "the original plan was 90,000, but raw material prices rose, adding $10,000 to the total” is what enables meaningful decision-making. The system that makes this possible is Standard Costing.


1. What Is Standard Cost?

Standard cost is a scientifically and statistically determined target cost that should be achieved. It serves as a benchmark against which actual costs are compared after the fact, enabling an evaluation of operational performance.


2. Cost Variance Analysis Simulator

Analyze the two most critical variances: Price Variance and Efficiency Variance.

원가 차이 분석(Variance Analysis) 시뮬레이터

실제 데이터 (Actual)
표준 데이터 (Standard)
분석 리포트 (Total Variance)
총 원가 차이: ₩2,500 불리(U)

표준 원가(₩9,500) 대비 실제 지출액의 차이입니다.

원가 초과 발생 (집중 관리 필요)

Favorable (F) vs Unfavorable (U) Variances

  • Favorable (F): Actual cost < Standard cost (cost savings)
  • Unfavorable (U): Actual cost > Standard cost (cost overrun)

3. Eight-Direction Analysis of Price and Efficiency Variances

Price variance is typically the responsibility of the purchasing department, while efficiency variance is usually attributed to the production department.

Direct Materials Variance Analysis Formulas
ItemFormulaResponsible Department
Price VarianceAQ × (SP − AP)Purchasing Department
Efficiency VarianceSP × (SQ − AQ)Production Department

Standard costing goes beyond accounting figures to form the foundation of responsibility accounting. Use the simulator to build a complete mental model of the chain: AQ (Actual Quantity), AP (Actual Price), SQ (Standard Quantity Allowed), and SP (Standard Price).

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