1. Performance Evaluation Through Standard Costs
Principles of Accounting
Kimmel • Weygandt • Kieso
Chapter 21
Performance Evaluation Through Standard Costs
Prepared by Barbara Muller
Arizona State University West

2. Performance Evaluation Through Standard Costs
CHAPTER 21
Performance Evaluation
Through Standard Costs
After studying this chapter, you should be able to:
Distinguish between a standard and a budget.
Identify the advantages of standard costs.
Describe how standards are set.
State the formulas for determining direct materials and direct labor variances.
State the formulas for determining manufacturing overhead variances.
Discuss the reporting of variances.
Prepare an income statement for management under a standard cost system.

3. The Need for Standards Standards Standard costs Are common in business
Are often imposed by government agencies (and called regulations)
Standard costs
Are predetermined unit costs
Used as measures of performance

4. Distinguishing Between Standards and Budgets STUDY OBJECTIVE 1
Standards and budgets are both
Pre-determined costs
Part of management planning and control
A standard is a unit amount whereas a budget is a total amount
Standard costs may be incorporated into a cost accounting system

5. Advantages of Standard Costs STUDY OBJECTIVE 2

6. Setting Standard Costs STUDY OBJECTIVE 3
Requires input from all persons who have responsibility for costs and quantities
Standards costs need to be current and should be under continuous review
There are two levels of standard costs
Ideal standards represent optimum levels of performance under perfect operating conditions
Normal standards represent efficient levels of performance attainable under expected operating conditions

7. Direct Materials Price Standard
Cost per unit which should be incurred
Based on the purchasing department’s best estimate of the cost of raw materials
Includes related costs such as receiving, storing, and handling

8. Direct Materials Quantity Standard
Quantity of direct materials used per unit of finished goods
Based on physical measure such as pounds, barrels, etc.
Includes allowances for unavoidable waste and normal storage
Materials

9. Total Direct Materials Cost/Unit
The standard direct materials cost per unit is calculated as follows
STANDARD
DIRECT
MATERIALS
PRICE x =
QUANTITY
MATERIALS COST
PER UNIT

10. Direct Labor Price Standard
Rate per hour incurred for direct labor
Based on current wage rates adjusted for anticipated changes, such as cost of living adjustments
Includes employer payroll taxes,and fringe benefits

11. Direct Labor Quantity Standard
Time required to make one unit of the product
Critical in labor-intensive companies
Allowances should be made for rest periods, cleanup, machine setup and machine downtime

12. Direct Labor
The standard direct labor cost per unit is calculated as follows
STANDARD DIRECT
LABOR RATE
STANDARD DIRECT
LABOR HOURS
STANDARD DIRECT
LABOR COST
PER UNIT

13. Manufacturing Overhead Standard
For manufacturing overhead, a standard predetermined overhead rate is used
The predetermined rate is computed by dividing budgeted overhead costs by an expected standard activity index
The standard manufacturing overhead rate per unit is the predetermined overhead rate times the direct labor quantity standard (or other activity index, if used)

14. Manufacturing Overhead
Standard Cost Per Unit
Standard cost per unit
Sum of the standard costs for direct materials, direct labor, and manufacturing overhead
Is determined for each product and often recorded on a standard cost card which provides the basis for determining variances from standards
Materials
Factory Labor
Manufacturing Overhead

15. Variances from Standards
Differences between total actual costs and total standard costs
Unfavorable variances occur when too much is paid for materials and labor or when there are inefficiencies in using materials and labor
Favorable variances occur when there are efficiencies in incurring costs and in using materials and labor

16. Analyzing variances
Variances must be analyzed to determine their significance
First, determine the cost elements that comprise the variance
For each manufacturing cost element, a total dollar variance is computed. Then this variance is analyzed into a price variance and a quantity variance

17. Variance Relationships

18. Formula for Total Materials Variance STUDY OBJECTIVE 4
The total materials variance is computed from the following formula:
Actual Quantity
x Actual Price
(AQ) x (AP) _
Standard Quantity
x Standard Price
(SQ) x (SP)
Total Materials
Variance
(TMV) =

19. Formula for Materials Price Variance
The materials price variance is computed from the following formula:
Actual Quantity
x Actual Price
(AQ) x (AP) _
Actual Quantity
x Standard Price
(SQ) x (SP)
Materials Price
Variance
(MPV) =

20. Formula for Materials Quantity Variance
The materials quantity variance is determined from the following formula:
Actual Quantity
x Standard Price
(AQ) x (SP)
Materials
Quantity
Variance
(MQV) _
Standard Quantity
x Standard Price
(SQ) x (SP) =

21. Matrix for Direct Materials Variance

22. Causes of Materials Variances
Materials variances may be caused by a variety of factors, including both internal and external factors
Investigating materials price variances begins in the purchasing department, but the variance may be beyond the control of purchasing (for ex., prices rise faster than expected)
Investigating materials quantity variance begins in the production department, but the variance may be beyond the control of production (for ex., faulty machinery)

23. Formula for Total Labor Variance
The total labor variance is obtained from the following formula:
Actual Hours
x Actual Rate
(AH) x (AR)
Standard Hours
x Standard Rate
(SH) x (SR)
Total Labor
Variance
(TLV) = _

24. Formula for Labor Price Variance
The formula for the labor price variance is as follows:
Actual Hours
x Actual Rate
(AH) x (AR)
X Standard Rate
(AH) x (SR)
Labor Price
Variance
(LPV) = _

25. Formula for Labor Quantity Variance
The labor quantity variance is derived from the following formula:
Actual Hours
x Standard Rate
(AH) x (SR)
Labor
Quantity
Variance
(LQV) _
Standard Hours
x Standard Rate
(SH) x (SR) =

26. Matrix for Direct Labor Variances

27. Actual Overhead Costs STUDY OBJECTIVE 5
The total overhead variance is the difference between actual overhead costs and overhead costs applied to work done.

28. Formula for Total Overhead Variance
With standard costs, manufacturing overhead costs are applied to work in process on the basis of the standard hours allowed for the work done. Standard hours allowed are the hours that should have been worked for the units produced. The formula for the total overhead variance is:
Overhead
Applied based
on Standard
Hours Allowed _
Total
Overhead
Variance
Actual
Overhead =

29. Formula for Overhead Controllable Variance
The formula for the Overhead Controllable Variance is shown below:
Overhead
Budgeted based
on Standard
Hours Allowed _
Actual
Overhead
Overhead
Controllable
Variance =

30. Formula for Overhead Volume Variance
The Overhead Volume Variance indicates whether plant facilities were efficiently used during the period. The formula for computing the volume variance is as follows:
Overhead
Budgeted based
on Standard
Hours Allowed
Applied based
Volume
Variance = _

31. Alternative Formula for Overhead Volume Variance
An alternative formula for computing the volume variance is shown below:
Fixed
Overhead
Rate
Normal Capacity
Hours - Standard
Hours Allowed
Overhead
Volume
Variance = X

32. Matrix for Manufacturing Overhead Variance

33. Reporting Variances STUDY OBJECTIVE 6
All variances should be reported to appropriate levels of management as soon as possible so that corrective action can be taken
The form, content, and frequency of variance reports vary considerably among companies
Variance reports facilitate the principle of “management by exception”
In using variance reports, top management normally looks for significant variances

34. Statement Presentation of Variances STUDY OBJECTIVE 7
Variances reported on income statements prepared for management
Show cost of goods sold stated at standard cost with variances are separately disclosed
Variances reported on statements prepared for stockholders and other external users
Inventories may be reported at standard costs when there are no significant differences between standard and actual costs

35. Let’s Review The setting of standards is:
a. A managerial accounting decision.
b. A management decision
c. A worker decision.
d. Preferably set at the ideal level of performance.

36. Let’s Review The setting of standards is:
a. A managerial accounting decision.
b. A management decision
c. A worker decision.
d. Preferably set at the ideal level of performance.

37. COPYRIGHT
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