Cost classifications► For external reporting ► For decision making cost behavior Product Costs raw materials through the use of labor and indirect manufacturing resources, such as the
Trang 1MANAGERIAL ACCOUNTING
Lecturer
Nguyen Phong NguyenAuditor - PricewaterhouseCoopersLecturer in Accounting -
University of Economics HCMC
MA Monash University (Australia)DBA Candidate University of Western Sydney (Australia)
Trang 23 Explain the differences between managerial
accounting and financial accounting.
Trang 3The Meaning of Managerial Accounting
►Managerial Accounting is the provision of
accounting information for a company’s internal
users
►Managerial accounting has three broad objectives:
Comparison of Financial and Managerial Accounting
Trang 4Comparison of Financial and
Managerial Accounting (continued)
The key point is flexibility—
the accounting system should be able to supply
different information for different purposes
Managerial Accounting
and Ethical Conduct
► The objective of profit maximization should
be constrained by the requirement that
profits be achieved through legal and ethical
means.
► Ethical behavior involves choosing actions
that are right, proper, and just.
Trang 5IMA Ethical Principles
►Competence – maintain an appropriate level of
professional expertise by continually developing
knowledge and skills;
►Confidentiality – refrain using confidential
information for unethical or illegal advantage;
►Integrity – abstain from engaging in or supporting
any activity that might discredit the profession; and
►Credibility – communicate information fairly and
objectively
Study questions – Q1
► How do managerial accounting and financial accounting
differ?
► Managerial accounting is internally focused, does not follow
mandatory rules, keeps track of both financial and nonfinancial
information, emphasizes the future, and provides detailed
information about various aspects of company management
Financial accounting, on the other hand, is externally focused,
follows externally imposed rules (such as GAAP), keeps track of
financial information, has a historical orientation, and provides
information about the company as a whole.
Trang 6Study questions – Q2
managerial accounting?
►The three broad objectives of managerial
accounting are planning, controlling, and decision
making
Study questions – Q3
► What is ethical behavior? Explain the
underlying code of ethics of the IMA.
►Ethical behavior is choosing actions that are
right, proper, and just The code of ethics of IMA
includes four principles: competence,
confidentiality, integrity, and credibility [See the
slide with title “IMA ethical principles”]
Trang 7Study questions – Q4
non-financial information?
►A managerial accounting information system
typically provides both financial and nonfi-nancial
information For example, financial information
on cost of production is tracked Other
information, such as the number of warranty
returns, may also be tracked by the management
information system
Section 2:
Basic Cost Concepts and
Classifications
Trang 8Learning Objectives
1 Explain the meaning of cost and how costs
are assigned to products and services
2 Define how costs are classified (cost
classification).
3 Apply cost estimation methods to separate
mixed costs into fixed and variable
elements.
What is cost?
► Cost is the amount of cash or cash equivalent
sacrificed for goods and/or services that are
expected to bring a current or future benefit to
the organization.
Trang 9Cost Objects
► A cost object is any item such as a product,
customer, department, project, geographic
region, plant, and so on, for which costs are
measured and assigned
Assigning costs is the way that a cost is linked to
some cost object.
To support Manufacturing?
To support Selling the Product?
?????
?????
Trang 10Direct Costs
► Direct costs are those costs that can be easily
and accurately traced to a cost object
we often mean that the relationship between
the cost and the object can be physically
observed and is easy to track
object, the more accurate are the cost
assignments.
Indirect Costs
EASILY AND ACCURATELY TRACED to a cost
object.
assigned to a cost object by using a
reasonable and convenient method.
Trang 11Exercise 2.30
a Salary of cell supervisor
b Power to heat and cool the plant in which the cell is located
c Materials used to produce the motors
d Maintenance for the cell’s equipment
e Labor used to produce motors
f Cafeteria that services the plant’s employees
g Depreciation on the plant
h Depreciation on equipment used to produce the motors
i Ordering costs for materials used in production
j Engineering support
k Cost of maintaining the plant and grounds
l Cost of the plant’s personnel office
m Property tax on the plant and land
Object Costing
► Direct and indirect costs occur in service businesses as well
► Some businesses refer to indirect costs as overhead costs or support
costs
Trang 12Cost classifications
► For external reporting
► For decision making (cost behavior)
Product Costs
raw materials through the use of labor and
indirect manufacturing resources, such as the
manufacturing plant, land, and machinery
►Televisions, hamburgers, automobiles,
computers, clothes, and furniture are examples of
Trang 13Determining Product Cost
costs, both direct and indirect, of producing a
product in a manufacturing firm or of
acquiring a product in a merchandising firm
and preparing it for sale
Determining Product Cost
(continued)
►Product costs initially are added to an inventory
account and remain in inventory until they are sold,
at which time they are transferred to cost of goods
►Product costs can be further classified as direct
materials, direct labor, and manufacturing
overhead
Trang 14Direct Materials
materials that are a part of
the final product and can be
directly traced to the goods
being produced.
Direct Labor
►Direct labor is the labor that can be directly traced to
the goods being produced
► Physical observation can be used to measure the amount of
labor used to produce a product
► Those employees who convert direct materials into a product
are classified as direct labor.
►A company can also have indirect labor costs
Trang 15Manufacturing Overhead
► All product costs other than direct materials and direct labor
are put into a category called manufacturing overhead
► In a manufacturing firm, manufacturing overhead also is known
as factory burden or indirect manufacturing costs.
► Costs are included as manufacturing overhead if they cannot
be traced to the cost object of interest (e.g., unit of product)
► The manufacturing overhead cost category contains a wide
variety of items
► Examples of manufacturing overhead costs include depreciation
on plant buildings and equipment, janitorial and maintenance
labor, plant supervision, materials handling, power for plant
utilities, and plant property taxes.
Exercise 2.31
Trang 16Exercise 2.31 (cont’d)
Calculating Total Product Cost
materials, direct labor, and manufacturing
overhead:
► Total product post = Direct materials cost + Direct labor
cost + Manufacturing overhead cost
divided by the number of units produced:
Trang 17Exercise 2.29
1 Direct materials—Product cost
Direct labor—Product cost
Manufacturing overhead—Product cost
Selling expense—Period cost
3 Unit product cost = $12,000/6.000 = $2.00
Period Costs
►The costs of production are assets that are carried in
inventories until the goods are sold
►There are other costs of running a company, referred to
as period costs, that are not carried in inventory
►Thus, period costs are all costs that are not product
costs
►The cost of office supplies, research and
development activities, the CEO’s salary, and
advertising are examples of period costs
►Period costs typically are expensed in the period in
which they are incurred
Trang 18Selling Costs
► Those costs necessary to market, distribute, and service a
product or service are selling costs.
Commissions Advertising
Administrative Costs
►All costs associated with research, development, and
general administration of the organization that cannot
reasonably be assigned to either selling or production
are administrative costs
► Examples of general administrative costs are executive
salaries, legal fees, printing the annual report, and general
accounting.
► Research and development costs are the costs associated with
Trang 19Cornerstone 2-3 Calculating Direct Materials Used in
Production
Work-in-Process
► Once the direct materials are calculated, the direct labor and
manufacturing overhead for the time period can be added to get
the total manufacturing cost for the period.
► The second type of inventory—work in process (WIP) is the cost
of the partially completed goods that are still on the factory floor
at the end of a time period.
► WIP units have been started, but not finished; they have some value, but
not as much as they will when they are completed; and there are
beginning and ending inventories of WIP
► We must adjust the total manufacturing cost for the time period for the
inventories of WIP
► When that is done, we will have the total cost of the goods that were
completed and transferred from work-in-process inventory to finished
Trang 20Cornerstone 2-4 Calculating Cost of Goods Manufactured
Cornerstone 2-4 Calculating Cost of Goods Manufactured
(continued)
Trang 21Cost of Goods Sold
► To meet external reporting requirements, costs must be
classified into three categories:
► Production
► Selling
► Administration
► Cost of goods sold represents the cost of goods that were
sold during the period and, therefore, transferred from
finished goods inventory on the balance sheet to cost of
goods sold on the income statement (i.e., as an inventory
expense) Cost of goods sold is calculated as:
Cost of goods sold = Beginning finished goods inventory + Cost
of goods manufactured - Ending finished goods inventory
Cornerstone 2-5 Calculating Cost of Goods Sold
Trang 22Basics of Cost Behavior
► Cost behavior is the general term for describing whether a
cost changes when the level of output changes.
► Costs can be variable, fixed, or mixed
► A cost that does not change in total as output changes is a
fixed cost.
► A variable cost, on the other hand, increases in total with an
increase in output and decreases in total with a decrease in
output.
► Knowing how costs change as output changes is essential to
planning, controlling, and decision making.
Relevant Range and Cost
Relationships
► The relevant range is the range of output over which the
assumed cost relationship is valid for the normal operations
of a firm
Trang 23Fixed Costs
► Fixed costs are costs that in total are constant within the relevant range as
the level of output increases or decreases.
► In this example of Colley Computers, notice while the total fixed cost of
supervision remains the same, the unit cost decreases as more computers
are produced.
Discretionary Fixed Costs and
Committed Fixed Costs
► Discretionary fixed costs are fixed costs that can be changed
or avoided relatively easily at management discretion.
► Committed fixed costs, on the other hand, are fixed costs
that cannot be easily changed.
Trang 24Variable Costs
► Variable costs are costs that in total vary in direct proportion to changes
in output within the relevant range.
► Variable costs can also be represented by a linear equation
► Total variable costs depend on the level of output
► This relationship can be described by the following equation or graphs:
Total variable costs = Variable rate x Amount of output
Mixed Costs
► Mixed costs are costs that have both a fixed and a variable
component For example, overhead for a company may consist of a
fixed supervisor salary plus the cost of supplies that vary with the
quantity of output produced The formula and graph depiction for a
mixed cost is as follows:
Total cost = Total fixed cost + Total variable cost
Trang 25Step Costs: Narrow Steps
► Some cost functions may be
discontinuous.
► These costs are known as step
costs (or semi-fixed).
► A step cost displays a constant
level of cost for a range of output
and then jumps to a higher level
(or step) of cost at some point,
where it remains for a similar
range of output.
► If a step cost has relatively narrow
steps, it means that the cost changes
in response to fairly small changes in
output and we can approximate it as a
variable cost (i.e., the red line).
Step Costs: Wide Steps
► Step cost with relatively wide steps
are more characteristic of fixed
costs
► For example, a company may have
to lease production machinery If
the machine can only produce
1,000 units and the company
grows, they will have to lease
additional machines for each 1,000
units of production needed
(resulting in the wide steps shown
in the graph)
Trang 26Accounting Records and
Need for Cost Separation
► Only through a formal effort to separate costs can all costs be
classified into the appropriate cost behavior categories.
► If mixed costs are a very small percentage of total costs,
formal cost separation may be more trouble than it’s worth.
► In this case, mixed costs could be assigned to either the fixed
or variable cost category without much concern for the
classification error or its effect on decision making.
► Alternatively, the total mixed cost could be arbitrarily divided
between the two cost categories (This is rarely done and not
a good option.)
► Typically, mixed costs for many firms are large enough to call
for separation.
Methods for Separating Mixed Costs
into Fixed and Variable Components
►Three methods of separating a mixed cost into its
fixed and variable components are commonly used:
►the high-low method
►the scattergraph method
►the method of least squares
►Each method requires the simplifying assumption of
Trang 27The High-Low Method
► Given two points, the slope and the intercept can be determined.
► The high-low method is method of separating mixed costs into fixed and
variable components by using just the high and low data points
► To demonstrate, we will use data from materials handling costs at
Anderson Company:
The High-Low Method
► Four steps must be taken in the high-low method:
► Step 1: Find the high point and the low point for a given data
set.
► Step 2: Using the high and low point, calculate the variable rate.
► Variable rate = (High point cost - Low point cost) ÷ (High
point output - Low point output)
► Step 3: Calculate the fixed cost using the variable rate (from
Step 2) and either the high point or low point.
► Fixed cost = Total cost at high point - (Variable rate x
Output at high point)
► Step 4: Form the cost formula for materials handling based on
the high-low method.
Trang 28Cornerstone 3-2Using The High-Low Method to Calculate
Fixed Cost and the Variable Rate and to
Construct a Cost Formula
Solution:
Step 1—Find the high and low points: The high number of machine hours is in March, and the low number of
machine hours is in June (Hint: Did you notice that the high cost of $4,200 was for August? Yet August is not the high point because its
number of machine hours is not the highest activity level Remember, the high point is associated with the highest activity
level; the low point is associated with the lowest activity level.)
Cornerstone 3-2 Using The High-Low Method to Calculate Fixed Cost and the Variable
Rate and to Construct a Cost Formula
(continued)
Trang 29Scattergraph Method
► The scattergraph method is a way to see the cost relationship
by plotting the data points on a graph
► The first step in applying the scattergraph method is to plot
the data points so that the relationship between materials
handling costs and activity output can be seen.
Scattergraph Method (continued)
► Then we inspect the scattergraph to see if it reveals one or
more points (outliers) that do not seem to fit the general
pattern of behavior.
► This knowledge might justify their elimination and perhaps
lead to a better estimate of the underlying cost function.
Trang 30Scattergraph Method (continued)
► Next, we should question whether the line determined by the high and low points
is representative of the overall relationship.
► Notice that three points lie above the high-low line, but five points lie below it.
► This does not give us confidence in the high-low results for fixed and variable
costs
► In particular, we might wonder if the variable cost (slope) is somewhat higher than
it should be and the fixed cost is somewhat lower than it should be.
Scattergraph Method (continued)
► Finally, we can use the scattergraph to visually fit a line to the data points on the
graph
► Of course, the manager or cost analyst will choose the line that appears to fit the
points the best, and perhaps that choice will take into account past experience
with the behavior of the cost item.
► An infinite number of lines might go through the data, but this one goes through
the point for January (100, $2,000) and intersects the y-axis at $800
Trang 31Scattergraph Method (continued)
► First, remember that our two points are (100,
$2,000) and (0, $800) Next, use these two
points to compute the variable rate (the slope):
Variable rate = ($2,000 - $800)
$100 - 0
= $1,200/100
= $12
► Thus the variable rate is $12 per material move.
► The fixed cost and variable rate for materials
handling cost have now been identified.
► The cost formula for the materials handling
activity can be expressed as:
Total cost = $800 + ($12 x Number of moves)
Using the Formula from the
Scattergraph Method
► Using this formula, the total cost of materials handling for between
100 and 500 moves can be predicted and then broken down into
fixed and variable components
► For example, assume that 350 moves are planned for November
► Using the cost formula, the predicted cost is:
$5,000 = $800 + ($12 x 350)
► Of this total cost, $800 is fixed, and $4,200 is variable.
► Unfortunately, the scattergraph method suffers from the lack
of any objective criterion for choosing the best-fitting line
► The quality of the cost formula depends on the quality of the
subjective judgment of the analyst.
Trang 32The Method of Least Squares
►The method of least squares (regression) is a
statistical way to find the best-fitting line through a
set of data points
►One advantage of the method of least squares is that
for a given set of data, it will always produce the
same cost formula
►Basically, the best-fitting line is the one in which the
data points are closer to the line than to any other
line
Line Deviations
► The regression line better describes
the pattern of the data than other
possible lines
► This best description results because
the squared deviations between the
regression line and each data point
are, in total, smaller than the sum of
the squared deviations of the data
points and any other line
► The least squares statistical formulas
can find the one line with the smallest
Trang 33Cornerstone 3-5Using The Regression Method to Calculate Fixed
Cost and the Variable Rate and to Construct a
Cost Formula and to Determine Budgeted Cost
Cornerstone 3-5Using The Regression Method to Calculate Fixed
Cost and the Variable Rate and to Construct a
Cost Formula and to Determine Budgeted Cost
(continued)
Trang 34Comparison of Methods
changes in output is essential to planning,
controlling, and decision making
costs into fixed and variable components help
managers understand cost behavior and
consequently make good business decisions.
Comparison of Methods for Separating Fixed Costs
into Fixed and Variable Components
Trang 35Managerial Judgment
► Managerial judgment is critically important in determining
cost behavior and is by far the most widely used method in
practice
► Many managers simply use their experience and past
observation of cost relationships to determine fixed and
variable costs
► This method, however, may take a number of forms
► Some managers simply assign some costs to the fixed
category and others to the variable category and ignore
the possibility of mixed costs.
► Other managers may identify mixed costs and divide these
into fixed and variable components.
Managerial Judgment
(continued)
► Finally, management may use experience and judgment to
refine statistical estimation results
► Perhaps the experienced manager might ‘‘eyeball’’ the data
and throw out several points as being highly unusual or revise
the results of estimation account for projected changes in
cost structure or technology.
► The advantage of using managerial judgment to separate
fixed and variable costs is its simplicity
► In situations in which the manager has a deep understanding
of the firm and its cost patterns, this method can give good
results
► However, if the manager does not have good judgment,
errors will occur.
Trang 36Section 3:
Cost-Volume-Profit (CVP)
Analysis
Learning Objectives
1 Determine the break-even point in sales
units and sales value, the amount of revenue
required for a target profit, the margin of
safety, and the degree of operating leverage
2 Understand the underlying assumptions and
limitations of the CVP analysis tool.
Trang 37Break-Even Point
in Units and Sales Dollars
►Cost-volume-profit (CVP) analysis estimates how
changes in the following three factors affect a
If the contribution margin income statement is
recast as an equation, it becomes more
useful for solving CVP problems
Basic CVP Equation
Trang 38► Recall in Cornerstone 4-1 that Whittaker sells
mowers for $400 each and variable cost per
mower is $325 Total fixed cost equals $45,000
Required:
1 Calculate the number of mowers that Whittier
must sell to break even
2 Check your answer by preparing a contribution
margin income statement based on the break-even
point
Cornerstone 4-2 Calculating the Break-Even Point in Units
Cornerstone 4-2 Calculating the Break-Even Point in Units
(continued)
Trang 39Break-Even Point in
Units
To recap, the break-even units are equal to the
fixed cost divided by the contribution margin
per unit
Break-Even Point
in Sales Dollars
Sometimes, managers using CVP analysis may prefer to use sales
revenue as the measure of sales activity instead of units sold A
units sold measure can be converted to a sales revenue measure
by multiplying the unit selling price by the units sold:
For example, the break-even point for Whittier is 600 mowers;
the selling cost is $400 per mower.
So , Breakeven in Sales $’s = 600 x $400 = $240,000
Trang 40Variable Cost Ratio and
Contribution Margin Ratio
Any answer expressed in units sold can be easily
converted to one expressed in sales revenues.
Alternatively:
Cornerstone 4-3 Calculating the Variable Cost Ratio and
the Contribution Margin Ratio