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BASIC COST MANAGEMENT CONCEPTS AND ACCOUNTING
FOR MASS CUSTOMIZATION OPERATIONS
Chapter 2Chapter 2
Learning Objectives • Explain the word "cost."• Distinguish among product costs, period costs, and expenses.• Describe the role of costs on published financial statements.• List five types of manufacturing operations and describe mass
customization.• Give examples of three types of manufacturing costs.• Prepare a schedule of cost of goods manufactured, a schedule of
cost of goods sold, and an income statement for a manufacturer.• Understand the importance of identifying an organization's cost
drivers.• Describe the behavior of variable and fixed costs, in total and on a
per-unit basis.• Distinguish among direct, indirect, controllable, and uncontrollable
costs.• Define and give examples of an opportunity cost, an out-of-pocket
cost, a sunk cost, a differential cost, a marginal cost, and an average cost.
Management ProcessesManagement Processes
DecisionMaking
DirectingControl
PlanningStrategy Formulation
Managers need cost information toperform each of these functions.
2-3
What Do We Mean By a Cost?
A costis the measure ofresources givenup to achieve a
particular purpose.
2-4
resources goals
Product Costs, Period Costs and Expenses
Product costs are costs associated with goods for sale until the time period during which the products are sold, at which time the costs become expenses.
Period costs are costs that are expensed during the time period in which they are incurred.
Expenses are the consumption of assets for the purpose of generating revenue.
2-5
Cost Classifications on Financial Cost Classifications on Financial Statements – Statements – Statement of Statement of Comprehensive IncomeComprehensive Income
Product CostsProduct Costs
Cost of goods sold
Period CostsPeriod Costs
Operating expenses
2-6
Cost Classifications on Financial Cost Classifications on Financial Statements – Statements – Statement of Financial Statement of Financial PositionPositionMerchandiser / TradingMerchandiser / Trading
Current Assets• Cash• Receivables• Prepaid Expenses• Merchandise InventoryMerchandise Inventory
ManufacturerManufacturer
Current Assets Cash Receivables Prepaid Expenses Inventories
Raw MaterialsRaw MaterialsWork in ProcessWork in ProcessFinished GoodsFinished Goods
2-7
Cost Classifications on Financial Cost Classifications on Financial Statements – Statements – Statement of Financial Statement of Financial PositionPosition MerchandiserMerchandiser
Current Assets• Cash• Receivables• Prepaid Expenses• Merchandise InventoryMerchandise Inventory
ManufacturerManufacturer
Current Assets CashCash ReceivablesReceivables Prepaid ExpensesPrepaid Expenses InventoriesInventories
Raw MaterialsRaw MaterialsWork in ProcessWork in ProcessFinished GoodsFinished Goods
Those materials waiting to be processed.
2-8
Cost Classifications on Financial Cost Classifications on Financial Statements – Statements – Statement of Financial Statement of Financial PositionPosition
MerchandiserMerchandiser
Current Assets• Cash• Receivables• Prepaid Expenses• Merchandise InventoryMerchandise Inventory
ManufacturerManufacturer Current Assets
CashCash ReceivablesReceivables Prepaid ExpensesPrepaid Expenses InventoriesInventories
Raw MaterialsRaw MaterialsWork in ProcessWork in ProcessFinished GoodsFinished Goods
Partially complete products – material to
which some labor and/or overhead has
been added.
2-9
Cost Classifications on Financial Cost Classifications on Financial Statements – Statements – Statement of Financial Statement of Financial PositionPosition
MerchandiserMerchandiser
Current Assets• Cash• Receivables• Prepaid Expenses• Merchandise InventoryMerchandise Inventory
ManufacturerManufacturer Current Assets
CashCash ReceivablesReceivables Prepaid ExpensesPrepaid Expenses InventoriesInventories
Raw MaterialsRaw MaterialsWork in ProcessWork in ProcessFinished GoodsFinished Goods
Completed products awaiting sale.
2-10
Types of Manufacturing Processes
Type of Production Description of Example ofProcess Process Manufacturer
Job Shop Low volume DisneyLittle standardization i.e. film
Unique products
Batch Multiple products CaterpillarLow volume i.e. heavy equipment
Assembly Line A few major products FordHigher volume i.e. automobile
Mass Customization High volume DellMany standardized components i.e. computer
Customized combination of components
Continuous Flow High volume ExxonHighly standardized commodity products i.e. gas
2-11
Manufacturing CostsManufacturing Costs
TheProduct
DirectLabor
Manufacturing Overhead
DirectMaterial
2-12
Direct MaterialDirect Material
Example:Steel used tomanufacture
the automobile.
Cost of raw material that is used tomake, and can be convenientlytraced, to the finished product.
2-13
Cost of salaries, wages, and fringebenefits for personnel who work
directly on manufactured products.
Direct LaborDirect Labor
Example:Wages paid to an
automobile assemblyworker.
2-14
Manufacturing OverheadManufacturing Overhead
All other manufacturing costs
Materials used to support the production process.
Examples: lubricants, glue and cleaning supplies used in an automobile assembly
plant.
IndirectLabor
IndirectMaterial
OtherCosts
2-15
Manufacturing OverheadManufacturing Overhead
All other manufacturing costs
Cost of personnel who do not work directly on
the product. Examples: maintenance workers, janitors and security guards in the factory
IndirectLabor
IndirectMaterial
OtherCosts
2-16
Manufacturing OverheadManufacturing Overhead
All other manufacturing costs
Examples: depreciation on plant and equipment,
property taxes, insurance, utilities,
overtime premium, and unavoidable idle time.
IndirectLabor
IndirectMaterial
OtherCosts
2-17
Manufacturing Cost FlowsManufacturing Cost Flows
ManufacturingOverhead
Direct Material
Direct Labor Work in Process Inventory
2-18
Manufacturing Cost FlowsManufacturing Cost Flows
ManufacturingOverhead
Direct Material
Direct Labor
FinishedGoods
Inventory
Work in Process Inventory
2-19
Manufacturing Cost FlowsManufacturing Cost Flows
ManufacturingOverhead
Direct Material
Direct Labor
FinishedGoods
Inventory
Cost of GoodsSold
Work in Process Inventory
2-20
Comet Computer CorporationSchedule of Cost of Goods Manufactured
Raw material used 134,980$ Direct labor 50,000 Total manufacturing overhead 230,000 Total manufacturing costs 414,980$ Add: Work-in-process inventory, January 1 120 Subtotal 415,100$ Deduct: Work-in-process inventory, December 31 100 Cost of goods manufactured 415,000$
Schedule of Cost of Goods Schedule of Cost of Goods ManufacturedManufactured
2-21
Comet Computer CorporationSchedule of Cost of Goods Manufactured
Raw material used 134,980$ Direct labor 50,000 Total manufacturing overhead 230,000 Total manufacturing costs 414,980$ Add: Work-in-process inventory, January 1 120 Subtotal 415,100$ Deduct: Work-in-process inventory, December 31 100 Cost of goods manufactured 415,000$
Schedule of Cost of Goods Schedule of Cost of Goods ManufacturedManufactured
Computation of Cost of Raw Material Used
Raw-material inventory, January 1 6,000$ Add: Purchases of raw materials 134,000 Raw material available for use 140,000 Deduct: Raw material inventory, December 31 5,020 Raw material used 134,980$
2-22
Comet Computer CorporationSchedule of Cost of Goods Manufactured
Raw material used 134,980$ Direct labor 50,000 Total manufacturing overhead 230,000 Total manufacturing costs 414,980$ Add: Work-in-process inventory, January 1 120 Subtotal 415,100$ Deduct: Work-in-process inventory, December 31 100 Cost of goods manufactured 415,000$
Schedule of Cost of Goods Schedule of Cost of Goods ManufacturedManufactured
Include all direct labor costs incurred during the
current period.
2-23
Comet Computer CorporationSchedule of Cost of Goods Manufactured
Raw material used 134,980$ Direct labor 50,000 Total manufacturing overhead 230,000 Total manufacturing costs 414,980$ Add: Work-in-process inventory, January 1 120 Subtotal 415,100$ Deduct: Work-in-process inventory, December 31 100 Cost of goods manufactured 415,000$
Computation of Total Manufacturing Overhead
Indirect material 10,000$ Indirect labor 40,000 Depreciation on factory 90,000 Depreciation on equipment 70,000 Utilities 15,000 Insurance 5,000 Total manufacturing overhead 230,000$
2-24
Comet Computer CorporationSchedule of Cost of Goods Manufactured
Raw material used 134,980$ Direct labor 50,000 Total manufacturing overhead 230,000 Total manufacturing costs 414,980$ Add: Work-in-process inventory, January 1 120 Subtotal 415,100$ Deduct: Work-in-process inventory, December 31 100 Cost of goods manufactured 415,000$
Schedule of Cost of Goods Schedule of Cost of Goods ManufacturedManufactured
Beginning work-in-process inventory is carried over from the
prior period.
Ending work-in-process inventory contains the cost of unfinished goods, and is reported in the current assets section of the balance sheet.
2-25
Statement of Comprehensive Income Statement of Comprehensive Income for a Manufacturerfor a Manufacturer
2-26
Comet Computer CorporationSchedule of Cost of Goods Sold
For the Year Ended December 31, 20X2
Finished-goods inventory, Jan. 1 200$ Add: Cost of goods manufactured 415,000 Cost of goods available for sale 415,200 Deduct Finished-goods inventory, Dec. 31 190 Cost of goods sold 415,010$
Comet Computer CorporationIncome Statement
For the Year Ended December 31, 20X2Sales revenue 700,000$ Less: Cost of goods sold 415,010 Gross margin 284,990$ Selling and administrative expenses 174,490 Income before taxes 110,500$ Income tax expense 30,000 Net income 80,500$
2-27
Statement of Comprehensive Income Statement of Comprehensive Income for a Manufacturerfor a Manufacturer
Comet Computer CorporationIncome Statement
For the Year Ended December 31, 20X2Sales revenue 700,000$ Less: Cost of goods sold 415,010 Gross margin 284,990$ Selling and administrative expenses 174,490 Income before taxes 110,500$ Income tax expense 30,000 Net income 80,500$
Comet Computer CorporationSchedule of Cost of Goods Sold
For the Year Ended December 31, 20X2
Finished-goods inventory, Jan. 1 200$ Add: Cost of goods manufactured 415,000 Cost of goods available for sale 415,200 Deduct Finished-goods inventory, Dec. 31 190 Cost of goods sold 415,010$
2-28
Costs ClassificationsCosts Classifications- variable or fixed cost- variable or fixed cost- direct or indirect - direct or indirect - control or uncontrollable - control or uncontrollable
2-29
Cost ClassificationsCost Classifications
Cost behavior means how a cost will react to changes in the level of business activity.• Total variable costs change
when activity changes.
• Total fixed costs remain unchanged when activity changes.
2-30
Total Variable Cost ExampleTotal Variable Cost Example
Your total cable pay-per-view bill (ASTRO 1st) is based on how many movies you watch.
Pay-Per-View Movies Watched
Tota
l Pay
-Per
-Vie
w
Bill
2-31
Variable Cost Per Unit ExampleVariable Cost Per Unit Example
The cost per movie watched is constant. For example, $4.00 per movie.
Movies Watched
Per
Mov
ie C
harg
e
2-32
Total Fixed Cost ExampleTotal Fixed Cost Example Your monthly cable bill probably does not change when
you watch movies on channels that you have elected to be paid on a monthly basis (HBO).
Number of HBO Movies Watched
Mon
thly
Cha
rge
for
HB
O B
ill
2-33
Fixed Cost Per Unit ExampleFixed Cost Per Unit Example
The average cost per HBO movie decreases as more HBO movies are watched.
Number of HBO Movies Watched
Mon
thly
HB
O B
ill p
er M
ovie
W
atch
ed
2-34
Cost ClassificationsCost Classifications
Summary of Variable and Fixed Cost BehaviorCost In Total Per Unit
Total variable cost changes Variable cost per unitVariable as activity level changes. remains the same over
wide ranges of activity.
Total fixed cost remains Fixed cost per unitFixed the same even when the goes down as activity
activity level changes. level goes up.
2-35
Direct and Indirect CostsDirect and Indirect CostsDirect costs• Costs that can be
easily and conveniently traced to a product or department.
• Example: cost of paint in the paint department of an automobile assembly plant.
Indirect costs• Costs that must be
allocated in order to be assigned to a product or department.
• Example: cost of national advertising for an airline is indirect to a particular flight.
2-36
Controllable and Uncontrollable CostsControllable and Uncontrollable Costs
A cost that can be significantly influencedby a manager is a controllable cost.
Cost item Manager ClassificatonCost of food used Restaurant Controllablein a restaurant manager
Cost of national Restaurant Uncontrollableadvertising by a managerrestaurant chain
2-37
Costs and Costs and Decision MakingDecision Making
2-38
Opportunity CostOpportunity Cost
The potential benefit that is given up when one alternative is selected over another.• Example: If you were
not attending college,you could be earning$20,000 per year. Your opportunity costof attending college for one year is $20,000.
2-39
Sunk CostsSunk Costs
All costs incurred in the past that cannot be changed by any decision made now or in the future are sunk costs. Sunk costs should not be considered in decisions.
• Example: You bought an automobile that cost $12,000 two years ago. The $12,000 cost is sunk because whether you drive it, park it, trade it, or sell it, you cannot change the $12,000 cost.
2-40
Differential CostsDifferential Costs
Costs that differ between alternatives.
Example: You can earn $1,500 per month in yourhometown or $2,000 per month in a nearby city.
Your commuting costs are $50 per month in yourhometown and $300 per month to the city.
What is your differential cost? $300 - $50 = $250
2-41
Marginal Costs and Average CostsMarginal Costs and Average Costs
The extra costincurred to produceone additional unit.
The total cost toproduce a quantity
divided by thequantity produced.
Marginal and average costs arelargely a function of cost behavior
-- variable and fixed costs.
2-42
Costs and Benefits of InformationCosts and Benefits of Information
Costs Benefits
More information does not mean more benefits if information overload results.
2-43
ACTIVITY ANALYSIS, COST BEHAVIOR, AND COST
ESTIMATION
Chapter 6Chapter 6
Variable Cost
Fixed Cost
Semi-variable cost
Curvilinear cost
Cost BehaviorCost Behavior
6-45
Total Variable Cost ExampleTotal Variable Cost Example
Your total Pay Per View bill is based on how many Pay Per View shows that you watch.
Number of Pay Per View shows watched
Tota
l Pay
Per
Vie
w B
ill
6-46
Variable Cost Per Unit ExampleVariable Cost Per Unit ExampleThe cost per Pay Per View show is constant. For example,
$4.95 per show.
Number of Pay Per View shows watched
Cos
t per
Pay
Per
Vie
w
show
6-47
Step-Variable CostsStep-Variable Costs
Activity
Cos
t
Total cost remainsconstant within anarrow range of
activity.
6-48
Step-Variable CostsStep-Variable Costs
Activity
Cos
t
Total cost increases to a new higher cost for the next higher
range of activity. i.e. PT workers in hotel or dept store
6-49
Total Fixed Cost ExampleTotal Fixed Cost Example
Your monthly basic cable TV bill probably does not change no matter how many hours you watch.
Number of hours watched
Mon
thly
Bas
ic
Cab
le B
ill
6-50
Fixed Cost Per Unit ExampleFixed Cost Per Unit Example
The average cost per hour decreases as more hours are spent watching cable television.
Number of hours watched
Mon
thly
Bas
ic c
able
Bill
pe
r hou
r wat
ched
6-51
Step-Fixed CostsStep-Fixed Costs
Example: Office space is available at a rental rate of
$30,000 per year in increments of 1,000 square feet. As the business grows
more space is rented, increasing the total cost.
Continue
6-52
Ren
t Cos
t in
Thou
sand
s of
Dol
lars
0 1,000 2,000 3,000 Rented Area (Square Feet)
30
60
90
Total cost doesn’t change for a wide range of activity, and then jumps to a new higher cost for the
next higher range of activity.
Step-Fixed CostsStep-Fixed Costs
6-53
Semivariable CostSemivariable Cost
A semivariable cost is partly fixed
and partly variable.
Consider thefollowing example.
6-54
Fixed MonthlyUtility Charge
Variable Utility Charge
Activity (Kilowatt Hours)
Tota
l Util
ity C
ost
Total semivariable cost
Semivariable CostSemivariable Cost Slope is
variable costper unit
of activity.
6-55
Curvilinear CostCurvilinear CostCurvilinear
Cost Function
Relevant Range of company
activities
Activity
Tota
l Cos
tCurvilinear
Cost Function
A straight-Line(constant unit
variable cost) closely approximates a
curvilinear line withinthe relevant range.
6-56
Account-Classification Method
Visual-Fit Method
High-Low Method
Least-Squares Regression Method
Cost EstimationCost Estimation
6-57
Account Classification MethodAccount Classification Method
Cost estimates are based on areview of each account making up
the total cost being analyzed.6-58
Visual-Fit MethodVisual-Fit Method
A scatter diagram of past cost behavior may be helpful in analyzing mixed costs.
6-59
2) Draw a line through the plotted data points so that about equal numbers of points fall above and below the
line.
Visual-Fit MethodVisual-Fit Method
0 1 2 3 4
*
Tota
l Cos
t in
1,00
0’s
of D
olla
rs
10
20
0
***
**
* **
*
Activity, 1,000’s of Units Produced6-60
1) Plot the data points on a graph (total cost vs. activity).
Visual-Fit MethodVisual-Fit Method
Vertical distance is total cost,
approximately $16,000.
0 1 2 3 4
*
Tota
l Cos
t in
1,00
0’s
of D
olla
rs
10
20
0
***
**
* **
*
Activity, 1,000’s of Units Produced
Estimated fixed cost = $10,000
6-61
The High-Low MethodThe High-Low Method
OwlCo recorded the following production activity and maintenance costs for two months:
Using these two levels of activity, compute: the variable cost per unit. the total fixed cost.
Units CostHigh activity level 9,000 9,700$ Low activity level 5,000 6,100
6-62
Units CostHigh activity level 9,000 9,700$ Low activity level 5,000 6,100 Change 4,000 3,600$
Unit variable cost = $3,600 ÷ 4,000 units = $0.90 per unit
The High-Low MethodThe High-Low Method
6-63
Unit variable cost = $3,600 ÷ 4,000 units = $0.90 per unit
Fixed cost = Total cost – Total variable cost Fixed cost = $9,700 – ($0.90 per unit × 9,000 units)
Units CostHigh activity level 9,000 9,700$Low activity level 5,000 6,100 Change 4,000 3,600$
The High-Low MethodThe High-Low Method
6-64
Units CostHigh activity level 9,000 9,700$Low activity level 5,000 6,100 Change 4,000 3,600$
Unit variable cost = $3,600 ÷ 4,000 units = $.90 per unit
Fixed cost = Total cost – Total variable cost Fixed cost = $9,700 – ($.90 per unit × 9,000 units) Fixed cost = $9,700 – $8,100 = $1,600
The High-Low MethodThe High-Low Method
6-65
Least-Squares Regression MethodLeast-Squares Regression Method
Regression is a statistical procedure usedto determine the relationship between variables
such as activity and cost.
Activity
Tota
l Cos
t
The objective ofthe regressionmethod is the
general cost equation:Y = a + bX
6-66
Y = a + bX
Total Cost is thedependent variable.
The activity (X) is theindependent variable.
The X term coefficient (b)is the estimate of variablecost per unit of activity,
the slope of the cost line.
The intercept term (a) isthe estimate of fixed costs.
Equation Form of Least-Squares Equation Form of Least-Squares Regression LineRegression Line
6-67
Least-Squares Regression MethodLeast-Squares Regression Method
• Statistics courses and computer courses deal with detailed regression computations using computer spreadsheet software.
• Accountants and managers must be able to interpret and use regression estimates.
6-68
Terms in the equation have the samemeaning as in simple regression with
only one independent variable.
Multiple RegressionMultiple Regression
Multiple regression includes two or more independent variables:
Y = a + b1X1 + b2X2
6-69
Engineering MethodEngineering Methodof Cost Estimationof Cost Estimation
Cost estimates are based on measurement and pricing of the work involved.
6-70
Direct Labor
•Material requiredfor each unit isobtained from
engineering drawings and specification sheets.
•Material prices are determined from
vendor quotation.
•Analyze the kindof work performed.•Estimate the time
required for each labor skill for each unit.
•Use local wage rates to obtain labor cost
per unit.
Direct Material
Engineering MethodEngineering Methodof Cost Estimationof Cost Estimation
6-71
ExerciseMonths Machine hours Manufacturing overhead (RM)
May JuneJuly August
46,00060,00068,00052,000
889,0001,130,0001,274,000980,000
Manufacturing overhead consists of machine supplies, depreciation and plant maintenance. July’s manufacturing overhead costs were RM170,000 for machine supplies, RM24,000 for depreciation and RM1,080,000 for plant maintenance. Required: a)By using the high and low method, compute the monthly fixed portion and variable cost per machine hour. b)Determine the cost function.c)Compute the manufacturing overhead for September if 56,000 machine hours are worked.