1. Cost Allocation and Activity-Based Costing
Principles of Financial and Managerial Accounting
11e
Principles of Managerial Accounting
11e
Chapter 26
Principles of Financial and Managerial Accounting
Using excel for Success
Student Version
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Prepared by: C. Douglas Cloud
Professor Emeritus of Accounting
Pepperdine University
© 2012 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part, except for use as permitted in a license distributed with a certain product or service or otherwise on a password-protected website for classroom use.
Reeve Warren Duchac

2. Learning Objective 1
Identify three methods used for allocating factory overhead costs to products. 2

3. Product Costing Allocation Methods
Product Costing Allocation Methods
Most companies have accounting systems that trace revenues to individual product lines. In addition, they need to subtract the cost of manufacturing their products from revenues in order to determine the profit from sales. Determining the cost of a product is termed product costing.

4. Product Costing Allocation Methods
Three methods of allocating factory overhead costs are:
Single plantwide factory overhead rate method
Multiple production department factory overhead rate method
Activity-based costing method

5. Use a single plantwide factory overhead rate for product costing.
Learning Objective 2
Use a single plantwide factory overhead rate for product costing.

6. Single Plantwide Factory Overhead Rate Method
LO 2
Single Plantwide Factory Overhead Rate Method
Under the single plantwide factory overhead rate method, all of the factory overhead is allocated to all products using only one rate.

7. Ruiz Company Illustration
LO 2
Ruiz Company Illustration
Ruiz Company
Ruiz Company Illustration
Ruiz Company manufactures two products, snowmobiles and riding mowers. Both products are manufactured in a single factory. There is $1,600,000 of factory overhead budgeted for the period.

8. Ruiz Company Illustration
LO 2
Ruiz Company Illustration
Ruiz Company
Each product is budgeted 10,000 direct labor hours as shown below:

9. Ruiz Company Illustration
LO 2
Ruiz Company Illustration
Ruiz Company
The plantwide rate is calculated as follows:
Total Budgeted Factory Overhead Costs
Total Budgeted Plantwide Allocation Base
$1,600,000
20,000 direct labor hours
$80 per direct labor hour =
(1,000 × 10 dlh) + (1,000 × 10 dlh)
(continued)

10. Factory Overhead Cost per Unit
LO 2
Ruiz Company Illustration
Ruiz Company
Snowmobile:
$80 per dlh × 10 direct labor hours = $800
Riding Mower:
$80 per dlh × 10 direct labor hours = $800
Factory Overhead Cost per Unit

11. Single Plantwide Factory Overhead Rate Method
LO 2
Single Plantwide Factory Overhead Rate Method
The primary advantage of the single plantwide overhead rate method is that it is simple and inexpensive to apply in practice.

12. Learning Objective 3
Use multiple production department factory overhead rates for product costing.

13. Multiple Production Department Factory Overhead Rate Method
LO 3
The multiple production department factory overhead rate method uses different rates for each production department to allocate factory overhead costs to products.

14. Department Overhead Rates and Allocation
LO 3
Ruiz Company
Fabrication Department Factory Overhead Rate:
$1,030,000
10,000 direct labor hours
= $103 per dlh
Assembly Department Factory Overhead Rate:
$570,000
10,000 direct labor hours
= $57 per dlh

15. Department Overhead Rates and Allocation
LO 3
Ruiz Company

16. Distortion of Product Costs
LO 3
Distortion of Product Costs
Ruiz Company
The differences in factory overhead for each product using the two methods are shown below:

17. Distortion of Product Costs
LO 3
Distortion of Product Costs
The following conditions indicate that a single plantwide factory overhead rate may cause product cost distortions:
Condition 1: Differences in production department factory overhead rates.
Condition 2: Differences among products in the ratios of allocation base usage within a department and across departments.

18. Use activity-based costing for product costing.
Learning Objective 4
Use activity-based costing for product costing.

19. Activity-Based Costing Method
LO 4
Activity-Based Costing Method
The activity-based costing method provides an alternative approach for allocating factory overhead that uses multiple factory overhead rates based on different activities.
Activities are the types of work, or actions, involved in a manufacturing or service process.

20. Budgeted Activity Cost
LO 4
Activity-Based Costing Method
Ruiz Company
Budgeted Activity Cost
Cutting metal to shape the product
Activity
Manually assembling machined pieces
Fabrication $ 530,000
Assembly 70,000
Setup 480,000
Quality-control inspections 312,000
Engineering changes ,000
Total budgeted activity costs $1,600,000
Changing tooling in machines in preparation for making a new product
Inspecting the product for conformity to specifications
An engineering change order (ECO) initiates changing a product or process.

21. Activity Rates and Allocation
Activity Rates and Allocation
The budgeted activity costs are assigned to products using factory overhead rates for each activity. These rates are called activity rates because they are related to activities.
Activity Rate =
Budgeted Activity Cost
Total Activity Base Usage
The term activity base, rather than allocation base, is used because the base is related to an activity.

22. Activity-Based Costing Method
LO 4
Activity-Based Costing Method
Ruiz Company
(continued)

23. Activity-Based Costing Method
LO 4
Activity-Based Costing Method
Ruiz Company
(continued)

24. Activity-Based Costing Method
LO 4
Activity-Based Costing Method
Ruiz Company
(continued)

25. Activity-Based Costing Method
LO 4
Activity-Based Costing Method
Ruiz Company

26. Activity-Based Costing Method
LO 4
Activity-Based Costing Method
Ruiz Company

27. Distortion of Product Costs
LO 4
Distortion of Product Costs
Ruiz Company
If Ruiz Company used the $800 factory overhead cost allocation (single plantwide rate) instead of activity-based costing, the following would likely result:
The snowmobile would be underpriced because its factory overhead cost is understated by $494 ($1,294 – $800).
The riding mower would be overpriced because its factory overhead cost is overstated by $494 ($800 – $306).

28. Learning Objective 5
Use activity-based costing to allocate selling and administrative expenses to products.

29. Activity-Based Costing for Selling and Administrative Expenses
LO 5
Budgeted Warranty Claim Expenses
Warranty Claim Activity Rate =
Estimated Warranty Claims
Warranty Claim Activity Rate =
$150,000
100 claims
Warranty Claim Activity Rate
= $1,500 per claim
(continued)

30. Activity-Based Costing for Selling and Administrative Expenses
LO 5
Assuming that Ipso had 10 warranty claims and Facto had 90 warranty claims, the field service activity expense would be allocated as follows:
Ipso: $15,000 = 10 warranty claims x $1,500 per warranty claim
Facto: $135,000 = 90 warranty claims x $1,500 per warranty claim

31. Use activity-based costing in a service business.
Learning Objective 6
Use activity-based costing in a service business.

32. Activity-Based Costing in Service Businesses
LO 6
Hopewell Hospital
Hopewell Hospital uses an activity-based costing system to determine how hospital overhead is allocated to patients.

33. Activity-Based Costing in Service Businesses
LO 6
The budgeted costs for radiological testing are $96,000, based on total estimated activity-base usage of 3,000 images.
Activity Rate =
Budgeted Activity Cost
Total Activity Base Usage
Radiological Testing Activity Rate
$960,000
3,000 images =
= $320 per image

34. Activity-Based Costing in Service Businesses
LO 6
Hopewell Hospital
(continued)

35. Activity-Based Costing in Service Businesses
LO 6
Hopewell Hospital
(continued)

36. Activity-Based Costing in Service Businesses6
LO 6

37. Cost Allocation and Activity-Based Costing
The End