4-A Management Accounting.ch 4.Activity Based Costing (ABC)
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Transcript of 4-A Management Accounting.ch 4.Activity Based Costing (ABC)
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Chapter 1 - 1
AGUS SISWANDI.SE.AKt
MANAGEMENT MANAGEMENT ACCOUNTINGACCOUNTING
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Chapter 1 - 2
Chapter Four
Activity-Based Costing
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Chapter 1 - 3
Learning Objectives
Discuss the importance of unit costs.
Describe functional-based costing approaches.
Explain why functional-based costing approaches may produce distorted costs.
Explain how an activity-based costing system works.
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Chapter 1 - 4
Provide a detailed description of how activities can be grouped into homogeneous sets to reduce the number of activity rates.
Describe the role of activity-based costing for organizations with only one product, homogeneous products, or a JIT structure.
Learning Objectives (continued)
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Chapter 1 - 5
Unit Costs
The unit cost is the total cost associated with the units produced divided by the number of units produced
Although the concept is simple, the practical reality ofthe computation can be somewhat more complexbecause of the following issues:
– What is meant by “total cost”?
– How do we measure the costs to be assigned?
– How do we assign costs to the product?
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Chapter 1 - 6
Unit Costs (continued)
Unit costs are important for:
inventory valuation
income determination
providing input to a variety of decisions such as pricing, make or buy, and accept or reject special orders
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Chapter 1 - 7
Measurement Systems
Two possible measurement systems are actual costing and normal costing.
Actual costing assigns the actual costs of direct materials, direct labor, and overhead to products.
Normal costing assigns the actual costs of direct materials and direct labor to products; however, overhead cots are assigned to products using predetermined rates.
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Chapter 1 - 8
Activity Capacity Measures
Units (of driver)
Theoretical
Practical
Expected actual
Normal
Time
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Chapter 1 - 9
Functional-Based Costing:Plantwide Rate
Overhead Costs
Assign Costs
Plantwide Pool
Assign Costs
Products
Direct Tracing
Stage One: Pool Formation
Unit-Level Driver
Stage Two: Costs Assigned
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Chapter 1 - 10
Belring, Inc.
Belring, Inc. produces two telephones: a cordless and a regular model. The company has the following actual and budgeted data:
Budgeted overhead $360,000
Expected activity (DLH) 100,000
Actual activity (DLH) 100,000
Actual overhead $380,000
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Chapter 1 - 11
Belring, Inc. (continued)
Cordless Regular
Units produced 10,000 100,000
Prime costs $78,000 $738,000
Direct labor hours 10,000 90,000
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Chapter 1 - 12
Belring, Inc. (continued)
Predetermined Overhead Rate = Budgeted overhead Expected activity
= $360,000 100,000 DLH
= $3.60 per DLH
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Chapter 1 - 13
Belring, Inc. – Unit Cost Computation:Plantwide Rate
Cordless Regular
Prime costs $ 78,000 $ 738,000
Overhead costs:
$3.60 x 10,000 36,000 ---
$3.60 x 90,000 --- 324,000
Total mfg. costs $114,000 $1,062,000
Units produced 10,000 100,000
Unit cost $ 11.40 $ 10.62
======= ========
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Chapter 1 - 14
Functional-Based Costing:Departmental Rates
Overhead Costs
Assign Costs
Department A Pool
Assign Costs
Products
Department B Pool
Assign Costs
Products
Stage One: Pool Formation
Unit-Level Drivers
Stage Two: CostsAssigned
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Chapter 1 - 15
Belring, Inc. – Departmental DataFabrication Assembly
Budgeted OH $252,000 $108,000
======= =======
Expected and actual usage (DLH):Cordless 7,000 3,000Regular 13,000 77,000
20,000 80,000
===== =====
Expected and actual usage (MH):Cordless 4,000 1,000Regular 36,000 9,000
40,000 10,000
===== =====
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Chapter 1 - 16
Belring, Inc. – Departmental Rates
Overhead Rates:
Fabrication Rate = Budgeted OH / Expected MH
= $252,000/40,000
= $6.30 per MH
Assembly Rate = Budgeted OH / Expected DLH
= $108,000/80,000
= $1.35 per DLH