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Chapter 11 Standard Costs and Variance Analysis. Presentation Outline I.Types of Standards II.Variance Calculations III.Investigation of Standard Cost.

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Presentation on theme: "Chapter 11 Standard Costs and Variance Analysis. Presentation Outline I.Types of Standards II.Variance Calculations III.Investigation of Standard Cost."— Presentation transcript:

1 Chapter 11 Standard Costs and Variance Analysis

2 Presentation Outline I.Types of Standards II.Variance Calculations III.Investigation of Standard Cost Variances

3 I. Types of Standards Ideal Standards Can only be attained under the best circumstances. No allowance for machine breakdowns or work interruptions Attainable Standards Tight but attainable standards. Allows for machine downtime and employee rest periods.

4 II. Variance Calculations A.Material Price Variance B.Material Price Variance Journal Entry C.Material Quantity Variance D.Material Quantity Variance Journal Entry E.Labor Rate Variance F.Labor Efficiency Variance G.Journal Entry for Direct Labor Variances H.Controllable Overhead Variance I.Overhead Volume Variance

5 A. Material Price Variance MPV = (AP – SP) AQ where: MPV = Material price variance AQ = Actual quantity of materials purchased AP = Actual unit price of materials SP = Standard unit price of materials Decision Rule: AP > SP Unfavorable AP < SP Favorable

6 B. Material Price Variance Journal Entry (Recorded at Time of Purchase) Raw Materials (AQ x SP) XXX Materials Price Variance [(AP-SP)AQ] XXX or XXX Accounts Payable (AQ x AP) XXX

7 C. Material Quantity Variance MQV = (AQ – SQ) SP where: MQV = Material quantity variance SP = Standard unit price of materials AQ = Actual quantity of materials put into production SQ = Standard quantity allowed for the output produced Decision Rule: AQ > SQ Unfavorable AQ < SQ Favorable

8 D. Material Quantity Variance Journal Entry (Recorded when materials are put into production) Work in Process (SQ x SP) XXX Materials Quantity Variance [(AQ-SQ)SP] XXX or XXX Raw Materials (AQ x SP) XXX

9 E. Labor Rate Variance LRV = (AR – SR) AH where: LRV = Labor rate variance AH = Actual labor hours worked AR = Actual labor rate SR = Standard labor rate Decision Rule: AR > SR Unfavorable AR < SR Favorable

10 F. Labor Efficiency Variance LEV = (AH – SH) SR where: LEV = Labor efficiency variance SR = Standard labor rate AH = Actual labor hours worked SH = Standard hours allowed for the output produced Decision Rule: AH > SH Unfavorable AH < SH Favorable

11 G. Journal Entry for Direct Labor Variances Work in Process (SH x SR) XXX Labor Rate Variance [(AR-SR)AH] XXX or XXX Labor Efficiency Variance [(AH-SH)SR] XXX or XXX Wages Payable (AH x AR) XXX

12 H. Controllable Overhead Variance Flexible budget level of overhead for the actual level of production Decision Rule: Actual > Flexible budget Unfavorable Actual < Flexible budget Favorable Actual overhead Controllable overhead variance =-

13 I. Overhead Volume Variance Overhead applied to production using standard overhead rate Decision Rule: Flexible budget > O/H applied Unfavorable Flexible budget < O/H applied Favorable Flexible budget level of overhead for actual level of production Overhead volume variance =-

14 III. Investigation of Standard Cost Variances A.Management by Exception B.Favorable Variances May be Unfavorable C.Process Improvements and Unfavorable Variances D.Variance Evaluation and Excess Production E.Variance Analysis and Performance Evaluation

15 A. Management by Exception Most managers take a management by exception approach and investigate only those variances that they deem to be exceptional. The absolute dollar value of the variance or the variance as a percent of actual or standard cost is often used as the criterion.

16 B. Favorable Variances May be Unfavorable The fact that a variance is favorable does not mean that it should not be investigated. Indeed, a favorable variance may be indicative of poor management decisions. For example: A favorable material price variance may be arisen from purchasing goods of inadequate quality for production. A favorable overhead volume variance could mean that excessive inventory has been produced beyond customer demand.

17 C. Process Improvements and Unfavorable Variances Production workers suggest a change in the manufacturing process so that the standard for labor time per unit is reduced from 4 to 3 hours. If the company does not need to increase production and keeps the same number of workers, an unfavorable labor efficiency variance will arise. (See Illustration on page 397)

18 D. Variance Evaluation and Excess Production The Theory of Constraints tells us that production departments in front of bottleneck departments should not produce excess work-in-process inventory. Evaluation in terms of standard cost variances could result in this dysfunctional behavior. For example, rather than lay off workers, a department with a temporary demand slump may produce excess units simply to avoid an unfavorable labor efficiency variance.

19 E. Variance Analysis and Performance Evaluation Responsibility accounting states that managers should only be held accountable for variance that they can control. Unfavorable variances do not imply poor performance. For example, an unfavorable labor efficiency variance could result from the purchase of inferior goods (which by the way resulted in a favorable material price variance).

20 Summary Ideal vs. Attainable Standards Material Variances Labor Variances Overhead Variances


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