1. Ch 5 – Activity based accounting

2. Activity–Based Costing (ABC)
ABC is a
good supplement to our traditional cost system
ABC is designed to provide managers with cost information for strategic and other decisions that potentially affect capacity, and therefore, affect “fixed” as well as variable costs.
I agree!
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3. How Costs are Treated Under Activity–Based Costing
ABC assigns both types of costs to products.
ABC does not assign all manufacturing costs to products.
ABC uses more cost pools.
ABC bases level of activity on capacity.

4. How Costs are Treated Under Activity–Based Costing
ABC differs from traditional cost accounting in four ways.
Activity–Based
Costing
Departmental
Overhead
Rates
Level of complexity
Plantwide
Overhead
Rate
Number of cost pools
ABC uses more cost pools.
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5. How Costs are Treated Under Activity–Based Costing
ABC differs from traditional cost accounting in four ways.
Traditional Costing
The predetermined overhead rate is based on budgeted activity. This results in applying all overhead costs including unused, or idle capacity costs to products.
ABC
Products are charged for the costs of capacity they use – not for the costs of capacity they don’t use. Unused capacity costs are treated as period expenses.
ABC bases level of activity on capacity.
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6. How Costs are Treated Under Activity–Based Costing
An event that causes the consumption of overhead resources.
Activity Cost Pool
A “cost bucket” in which costs related to a particular activity measure are accumulated. $

7. How Costs are Treated Under Activity–Based Costing
The term cost driver is also used to refer to an activity measure.
Activity Measure
An allocation base in an activity-based costing system.
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8. How Costs are Treated Under Activity–Based Costing
Two common types of activity measures:
Simple count of the number of times an activity occurs.
Transaction driver
A measure of the amount of time needed for an activity.
Duration driver
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9. How Costs are Treated Under Activity–Based Costing
Manufacturing companies typically combine their activities into five classifications.
Unit-Level
Activity
Batch-Level
Product-Level
Customer-Level
Organization- sustaining
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10. Characteristics of Successful ABC Implementations
Strong top management support
Link to evaluations and rewards
Cross-functional involvement
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11. Designing an ABC System
Cost Objects
(e.g., products
and customers)
Activities
Consumption
of Resources
Cost
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12. Designing an ABC System
Steps for Implementing ABC
Identify and define activities, activity cost pools and activity measures.
Assign overhead costs to activity cost pools.
Calculate activity rates.
Assign overhead costs to cost objects using the activity rates and activity measures.
Prepare management reports.
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13. Classic Brass – An ABC Example
Manufacturing overhead is allocated to products using a single plantwide overhead rate based on machine hours.
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14.  Define Activities, Activity Cost Pools, and Activity Measures
At Classic Brass, the ABC team, selected the following activity cost pools and activity measures:
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15.  Define Activities, Activity Cost Pools, and Activity Measures
Customer Orders - assigned all costs of resources that are consumed by taking and processing customer orders.
Product Designs - assigned all costs of resources consumed by designing products.
Order Size - assigned all costs of resources consumed as a consequence of the number of units produced.
Customer Relations – assigned all costs associated with maintaining relations with customers.
Other – assigned all overhead costs that are not associated with the other cost pools.
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16.  Assign Overhead Costs to Activity Cost Pools
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17.  Assign Overhead Costs to Activity Cost Pools
At Classic Brass the following distribution of resource consumption across activity cost pools is determined.
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18.  Assign Overhead Costs to Activity Cost Pools
Indirect factory wages $500,000
Percent consumed by customer orders %
$125,000
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19.  Assign Overhead Costs to Activity Cost Pools
Factory equipment depreciation $300,000
Percent consumed by customer orders %
$ 60,000
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20.  Assign Overhead Costs to Activity Cost Pools
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21.  Calculate Activity Rates
The ABC team determines that Classic Brass will have these total activities for each activity cost pool . . .
1,000 customer orders,
400 new designs,
20,000 machine-hours,
250 customer relations activities.
Now the team can compute the individual activity rates by dividing the total cost for each activity by the total activity levels.
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22.  Calculate Activity Rates
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23. Activity-Based Costing at Classic Brass
Direct
Materials
Direct
Labour
Shipping
Costs
Overhead Costs
Traced
Cost Objects:
Products, Customer Orders, Customers
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24. Activity-Based Costing at Classic Brass
Direct
Materials
Direct
Labour
Shipping
Costs
Overhead Costs
First-Stage Allocation
Order
Size
Customer
Orders
Product
Design
Customer
Relations
Other
Cost Objects:
Products, Customer Orders, Customers
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25. Activity-Based Costing at Classic Brass
Direct
Materials
Direct
Labour
Shipping
Costs
Overhead Costs
First-Stage Allocation
Customer Orders
Product
Design
Order Size
Customer
Relations
Other
Second-Stage Allocations
$/Order
$/Design
$/MH
$/Customer
Cost Objects:
Products, Customer Orders, Customers
Unallocated
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26.  Assigning Overhead to Products
Classic Brass Information
Standard Stanchions
Requires no new design resources.
30,000 units ordered with 600 separate orders.
Each stanchion requires 35 minutes of machine time for a total of 17,500 machine-hours.
Custom Compass Housing
Requires new design resources.
400 separate orders.
400 custom designs prepared.
1,250 compass housings produced, requiring 2 machine-hours each for a total of 2,500 machine-hours.
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27.  Assigning Overhead to Products
The customer-level cost is assigned to customers directly; it is not assigned to products.
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28. Assigning Overhead to Customers
Let’s take a look at how Classic Brass system works for just one of the 250 customers – Windward Yachts who placed a total of three orders.
Orders
Two orders for 150 standard stanchions per order.
One order for a custom compass housing. .
Machine-hours
The 300 standard stanchions required 175 machine-hours.
The custom compass housing required 2 machine hours.
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29. Assigning Overhead to Customers
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30.  Prepare Management Reports
Product Margin Calculations
The first step in computing product margins is to gather each product’s sales and direct cost data.
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31.  Prepare Management Reports
Product Margin Calculations
The second step in computing product margins is to incorporate the previously computed activity-based cost assignments pertaining to each product.
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32.  Prepare Management Reports
Product Margin Calculations
The third step in computing product margins is to deduct each product’s direct and indirect costs from sales.
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33.  Prepare Management Reports
Product Margin Calculations
The product margins can be reconciled with the company’s net operating income as follows:
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34.  Prepare Management Reports
Customer Profitability Analysis The first step in computing Windward Yachts’ customer margin is to gather its sales and direct cost data.
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35.  Prepare Management Reports
Customer Profitability Analysis The second step is to incorporate Windward Yachts’ previously computed activity-based cost assignments.
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36.  Prepare Management Reports
Customer Profitability Analysis The third step is to compute Windward Yachts’ customer margin ($699) by deducting all its direct and indirect costs from its sales.
The third step is to compute Windward Yachts’ customer margin ($699) by deducting all its direct and indirect costs from its sales.
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37. Targeting Process Improvement
Activity-based management is used in conjunction with ABC to identify areas that would benefit from process improvements.
While the theory of constraints approach discussed in Chapter 12 is a powerful tool for targeting improvement efforts, activity rates can also provide valuable clues on where to focus improvement efforts.
Benchmarking can be used to compare activity cost information with world-class standards of performance achieved by other organizations.
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38. Product Margins Computed Using the Traditional Cost System
The first step in computing product margins is to gather each product’s sales and direct cost data.
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39. Product Margins Computed Using the Traditional Cost System
The second step in computing product margins is to compute the plantwide overhead rate.
Plantwide manufacturing
overhead rate
$1,000,000
20,000 MH
= $50 per machine-hour =
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40. Product Margins Computed Using the Traditional Cost System
The third step in computing product margins is allocate manufacturing overhead to each product.
17,500 hours × $50 per hour = $875,000
The third step is to allocate manufacturing overhead to each product. Notice:
17,500 machine-hours were worked on standard stanchions, so $875,000 (17, hours × $50) of manufacturing overhead is assigned to this product.
Custom compass housings are assigning the remaining $125,000 (2,500 × $50) of manufacturing overhead.
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41. Product Margins Computed Using the Traditional Cost System
The fourth step is to actually compute the product margins.
The fourth step is to compute the product margins—$615,750 for standard stanchions and $258,000 for custom compass housings. Notice selling and administrative expenses are not allocated to products because they are assumed to be period expenses. The overall net loss of $1,250 reconciles with the income statement shown earlier.
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42. The Differences Between ABC and Traditional Product Costs
The traditional cost system overcosts the standard stanchions and reports a lower product margin for this product.
The traditional cost system undercosts the custom compass housings and reports a higher product margin for this product.
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43. Differences Between ABC and Traditional Product Costs
There are three reasons why the reported product margins for the two costing systems differ from one another.
Traditional costing allocates all manufacturing overhead to products. ABC costing only assigns manufacturing overhead costs consumed by products to those products.
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44. Differences Between ABC and Traditional Product Costs
There are three reasons why the reported product margins for the two costing systems differ from one another.
 Traditional costing allocates all manufacturing overhead costs using a volume-related allocation base. ABC costing also uses non-volume related allocation bases.
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45. Differences Between ABC and Traditional Product Costs
There are three reasons why the reported product margins for the two costing systems differ from one another.
 Traditional costing disregards selling and administrative expenses because they are assumed to be period expenses. ABC costing directly traces shipping costs to products and includes non-manufacturing overhead costs caused by products in the activity cost pools that are assigned to products.
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46. Activity-Based Costing and External Reporting
Most companies do not use ABC for external reporting because . . .
External reports are less detailed than internal reports.
It may be difficult to make changes to the company’s accounting system.
ABC does not conform to GAAP.
Auditors may be suspect of the subjective allocation process based on interviews with employees.
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47. ABC Limitations
Substantial resources required to implement and maintain.
Resistance to unfamiliar numbers and reports.
Desire to fully allocate all costs to products.
Potential misinterpretation of unfamiliar numbers.
Does not conform to GAAP. Two costing systems may be needed.
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48. ABC Action Analysis
Appendix 5A

49. Appendix 5A: ABC Action Analysis
Conventional ABC analysis does not identify potentially relevant costs. An action analysis report helps because it:
Shows what costs have been assigned to a cost object.
Indicates how difficult it would be to adjust those costs in response to changes in the level of activity.
A conventional ABC analysis does not identify potentially relevant costs. An action analysis report can help in this regard because it shows what costs have been assigned to a cost object and it indicates how difficult it would be to adjust those costs in response to changes in the level of activity.
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50. Appendix 5A: ABC Action Analysis
Constructing an action analysis report begins with the first-stage allocation process. In addition to computing an overall activity rate for each activity cost pool, an activity rate is computed for each type of overhead cost that is consumed supporting a given activity.
Let’s revisit the stage-one allocations from the Classic Brass example that we discussed earlier.
Constructing an action analysis report begins with the first-stage allocation process. In addition to computing an overall activity rate for each activity cost pool, an activity rate is computed for each type of overhead cost that is consumed supporting a given activity.
Let’s revisit the stage-one allocations from the Classic Brass example that we discussed earlier in the chapter.
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51. Appendix 5A: ABC Action Analysis
$125,000 ÷ 1,000 orders = $125 per order
Other entries in the table are computed similarly.
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52. Appendix 5A: ABC Action Analysis
$125 per order × 600 orders = $75,000
Other entries in the table are computed similarly.
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53. Appendix 5A: ABC Action Analysis
$125 per order × 400 orders = $50,000
Other entries in the table are computed similarly.
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54. Appendix 5A: ABC Action Analysis
Next, label each cost using an ease of adjustment code:
Green costs adjust more or less automatically to changes in activity level without any action by managers.
Yellow costs can be adjusted to changes in activity level, but it would require management action to realize the change in cost.
Red costs can be adjusted to changes in activity level only with a great deal difficulty and with management intervention.
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55. Appendix 5A: ABC Action Analysis
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