07 Variable Costing - A Tool for Management
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Transcript of 07 Variable Costing - A Tool for Management
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© 2010 The McGraw-Hill Companies, Inc.
Variable Costing:A Tool for Management
Chapter 7
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McGraw-Hill/Irwin Slide 2
Learning Objective 1
Explain how variable Explain how variable costing differs from costing differs from
absorption costing and absorption costing and compute unit product compute unit product
costs under each costs under each method.method.
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McGraw-Hill/Irwin Slide 3
Overview of Absorption and Variable Costing
Direct Materials
Direct Labor
Variable Manufacturing Overhead
Fixed Manufacturing Overhead
Variable Selling and Administrative Expenses
Fixed Selling and Administrative Expenses
VariableCosting
AbsorptionCosting
ProductCosts
PeriodCosts
ProductCosts
PeriodCosts
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McGraw-Hill/Irwin Slide 4
Quick Check
Which method will produce the highest values for work in process and finished goods inventories?
a. Absorption costing.
b. Variable costing.
c. They produce the same values for these inventories.
d. It depends. . .
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McGraw-Hill/Irwin Slide 5
Which method will produce the highest values for work in process and finished goods inventories?
a. Absorption costing.
b. Variable costing.
c. They produce the same values for these inventories.
d. It depends. . .
Quick Check
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McGraw-Hill/Irwin Slide 6
Harvey Company produces a single productwith the following information available:
Unit Cost Computations
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McGraw-Hill/Irwin Slide 7
Unit product cost is determined as follows:
Under absorption costing, all production costs, variable and fixed, are included when determining unit product
cost. Under variable costing, only the variable production costs are included in product costs.
Unit Cost Computations
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McGraw-Hill/Irwin Slide 8
Learning Objective 2
Prepare income Prepare income statements using both statements using both variable and absorption variable and absorption
costing.costing.
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McGraw-Hill/Irwin Slide 9
Income Comparison ofAbsorption and Variable Costing
Let’s assume the following additional information for Harvey Company. 20,000 units were sold during the year at a price
of $30 each. There is no beginning inventory.
Now, let’s compute net operatingincome using both absorptionand variable costing.
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McGraw-Hill/Irwin Slide 10
Absorption Costing
Fixed manufacturing overhead deferred in inventory is 5,000 units × $6 = $30,000.
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McGraw-Hill/Irwin Slide 11
Variable CostingSales (20,000 × $30) 600,000$ Less variable expenses: Beginning inventory -$ Add COGM (25,000 × $10) 250,000 Goods available for sale 250,000 Less ending inventory (5,000 × $10) 50,000 Variable cost of goods sold 200,000 Variable selling & administrative expenses (20,000 × $3) 60,000 260,000 Contribution margin 340,000 Less fixed expenses: Manufacturing overhead 150,000$ Selling & administrative expenses 100,000 250,000 Net operating income 90,000$
Variablemanufacturing
costs only.
All fixedmanufacturing
overhead isexpensed.
Variable Costing
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McGraw-Hill/Irwin Slide 12
Learning Objective 3
Reconcile variable Reconcile variable costing and absorption costing and absorption costing net operating costing net operating incomes and explain incomes and explain why the two amounts why the two amounts
differ.differ.
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McGraw-Hill/Irwin Slide 13
Comparing the Two Methods
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McGraw-Hill/Irwin Slide 14
Variable costing net operating income 90,000$ Add: Fixed mfg. overhead costs deferred in inventory (5,000 units × $6 per unit) 30,000 Absorption costing net operating income 120,000$
Fixed mfg. overhead $150,000 Units produced 25,000 units= = $6 per unit
We can reconcile the difference betweenabsorption and variable income as follows:
Comparing the Two Methods
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McGraw-Hill/Irwin Slide 15
Extended Comparisons of Income Data Harvey Company – Year Two
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McGraw-Hill/Irwin Slide 16
Unit Cost Computations
Since the variable costs per unit, total fixed costs, Since the variable costs per unit, total fixed costs, and the number of units produced remained and the number of units produced remained unchanged, the unit cost computations also unchanged, the unit cost computations also
remain unchanged.remain unchanged.
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McGraw-Hill/Irwin Slide 17
Absorption CostingSales (30,000 × $30) 900,000$ Less cost of goods sold: Beg. inventory (5,000 × $16) 80,000$ Add COGM (25,000 × $16) 400,000 Goods available for sale 480,000 Less ending inventory - 480,000 Gross margin 420,000 Less selling & admin. exp. Variable (30,000 × $3) 90,000$ Fixed 100,000 190,000 Net operating income 230,000$
Absorption Costing
Fixed manufacturing overhead released from inventory is 5,000 units × $6 = $30,000.
Unit product
cost.
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McGraw-Hill/Irwin Slide 18
Variable Costing
All fixedmanufacturing
overhead isexpensed.
Variablemanufacturing
costs only.
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McGraw-Hill/Irwin Slide 19
Variable costing net operating income 260,000$ Deduct: Fixed manufacturing overhead costs released from inventory (5,000 units × $6 per unit) 30,000 Absorption costing net operating income 230,000$
We can reconcile the difference betweenabsorption and variable income as follows:
Fixed mfg. overhead $150,000 Units produced 25,000 units= = $6 per unit
Comparing the Two Methods
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McGraw-Hill/Irwin Slide 20
Comparing the Two Methods
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McGraw-Hill/Irwin Slide 21
Summary of Key Insights
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McGraw-Hill/Irwin Slide 22
Learning Objective 4
Understand the Understand the advantages and advantages and
disadvantages of both disadvantages of both variable and absorption variable and absorption
costing.costing.
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McGraw-Hill/Irwin Slide 23
Impact on the Manager
Opponents of absorption costing argue thatshifting fixed manufacturing overhead costs
between periods can lead to faulty decisions.
These opponents argue that variable costing incomestatements are easier to understand because net operating
income is only affected by changes in unit sales. Thisproduces net operating income figures that are
consistent with managers’ expectations.
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McGraw-Hill/Irwin Slide 24
CVP Analysis, Decision Makingand Absorption costing
Absorption costing does not dovetail with CVP analysis, nor does it support decision making. It treats fixed
manufacturing overhead as a variable cost. It assigns per unit fixed manufacturing overhead costs to production.
Treating fixed manufacturing overhead as a variable cost can:• Lead to faulty pricing decisions and faulty keep-or-drop decisions.
Assigning per unit fixed manufacturing overhead costs to production can:• Potentially produce positive net operating income even when the number of units sold is less than the breakeven point.
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McGraw-Hill/Irwin Slide 25
External Reporting and Income Taxes
To conform toTo conform toGAAP requirements,GAAP requirements,
absorption costing must be used forabsorption costing must be used forexternal financial reports in theexternal financial reports in the
United States. United States.Under the Tax
Reform Act of 1986,absorption costing must be
used when filling out income tax returns.Since top executives
are typically evaluated based on earnings reported to shareholders
in external reports, they may feel that decisions should be based on
absorption costing data.
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McGraw-Hill/Irwin Slide 26
Advantages of Variable Costingand the Contribution Approach
Advantages
Management findsit more useful.
Consistent withCVP analysis.
Net operating income is closer to
net cash flow.
Profit is not affected bychanges in inventories.
Consistent with standardcosts and flexible budgeting.
Impact of fixedcosts on profitsemphasized.
Easier to estimate profitabilityof products and segments.
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McGraw-Hill/Irwin Slide 27
VariableCosting
Variable versus Absorption Costing
Fixed manufacturingcosts must be assignedto products to properlymatch revenues and
costs.
Fixed manufacturing costs are capacity costs
and will be incurredeven if nothing is
produced.
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McGraw-Hill/Irwin Slide 28
Variable Costing and the Theory of Constraints (TOC)
Companies involved in TOC use a form of variable costing. However, one difference of the TOC approach is that it treats direct labor as a fixed cost for three reasons: Many companies have a commitment to guarantee
workers a minimum number of paid hours.
Direct labor is usually not the constraint. TOC emphasizes the role direct laborers play in driving
continuous improvement. Since layoffs often devastate morale, managers involved in TOC are extremely reluctant to lay off employees.
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McGraw-Hill/Irwin Slide 29
Impact of Lean Production
When companies use Lean Production . . .
Productiontends to equal
sales . . .
So, the difference between variable andabsorption income tends to disappear.
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McGraw-Hill/Irwin Slide 30
End of Chapter 7