Standard Costing
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Transcript of Standard Costing
Standard Costs
Distinguish between a standard and a budget. Identify the advantages of standard costs. Describe how standards are set. State the formulas for determining direct materials and
direct labor variances. State the formulas for determining manufacturing overhead
variances. Discuss the reporting of variances.
Our Focus
The Need for Standards
Standards• Are common in business• Are often imposed by government agencies (and
called regulations)
Standard costs• Are predetermined unit costs• Used as measures of performance
Distinguishing Between Standards and Budgets
Standards and budgets are both• Pre-determined costs
• Part of management planning and control
A standard is a unit amount whereas a budget is a total amount
• Standard costs may be incorporated into a cost accounting system
Advantages of Standard Costs
Setting Standard Costs
Setting standard costs• Requires input from all persons who have responsibility for
costs and quantities• Standards costs need to be current and should be under
continuous review
There are two levels of standard costs• Ideal standards represent optimum levels of performance
under perfect operating conditions • Normal standards represent efficient levels of performance
attainable under expected operating conditions (rigorous but attainable)
Direct Materials Price Standard
Direct materials price standard• Cost per unit which should be incurred
• Based on the purchasing department’s best estimate of the cost of raw materials
• Includes related costs such as receiving, storing, and handling
Direct Materials Quantity Standard
Direct materials quantity standard• Quantity of direct materials used per unit of finished goods
• Based on physical measure such as pounds, barrels, etc.• Considers both the quantity and quality of materials required
• Includes allowances for unavoidable waste and normal storage
Total Direct Materials Cost/Unit
STANDARD DIRECT
MATERIALSPRICE
x =
STANDARDDIRECT
MATERIALSQUANTITY
STANDARDDIRECT
MATERIALS COSTPER UNIT
The standard direct materials cost per unit is calculated as follows
Direct Labor Price Standard
Direct labor price standard • Rate per hour incurred for direct labor• Based on current wage rates adjusted for anticipated
changes, such as cost of living adjustments• Includes employer payroll taxes,and fringe benefits
Direct Labor Quantity Standard
Direct labor quantity standard• Time required to make one unit of the product
• Critical in labor-intensive companies
• Allowances should be made for rest periods, cleanup, machine setup and machine downtime
Direct Labor
The standard direct labor cost per unit is calculated as follows
STANDARD DIRECT
LABOR RATEx =
STANDARDDIRECT
LABOR HOURS
STANDARDDIRECT
LABOR COSTPER UNIT
Manufacturing Overhead Standard
For manufacturing overhead, a standard predetermined overhead rate is used
• The predetermined rate is computed by dividing budgeted overhead costs by an expected standard activity index
• The standard manufacturing overhead rate per unit is the predetermined overhead rate times the activity index quantity standard (for example, direct labor hours)
Standard Cost Per Unit
Standard cost per unit• Sum of the standard costs for direct materials, direct labor, and
manufacturing overhead
• Is determined for each product and often recorded on a standard cost card which provides the basis for determining variances from standards
materialslabour Manufacturing
Overheads
Variances from StandardsVariances from Standards Variances from standards• Differences between total actual costs and total
standard costs• Unfavorable variances occur when too much is paid
for materials and labor or when there are inefficiencies in using materials and labor
• Favorable variances occur when there are efficiencies in incurring costs and in using materials and labor– A variance is not favorable if quality control standards are
sacrificed
Analyzing variances Variances must be analyzed to
determine their significance• First, determine the cost elements that comprise the
variance• For each manufacturing cost element, a total dollar
variance is computed. Then this variance is analyzed into a price variance and a quantity variance
Variance Relationships
Formula for Total Materials Variance
Actual Quantityx Actual Price
(AQ) x (AP)
Standard Quantityx Standard Price
(SQ) x (SP)
Total MaterialsVariance
(TMV)=_
The total materials variance is computed from the following formula:
Formula for Materials Price Variance
Actual Quantityx Actual Price
(AQ) x (AP)
Actual Quantityx Standard Price
(SQ) x (SP)
Materials PriceVariance
(MPV)=_
The materials price variance is computed from the following formula:
Formula for Materials Quantity Variance
Actual Quantityx Standard Price
(AQ) x (SP)
Standard Quantityx Standard Price
(SQ) x (SP)
MaterialsQuantityVariance
(MQV)
=_
The materials quantity variance is determined from the following formula:
Matrix for Direct Materials Variance
AQ X AP4200 X 3.10=13020
AQ XSP4200 X 3.00 =12,600
SQ XSP4000 X3= 12,000
1 - 2Price Variance13,020-12,600=Rs 420 UF
2 - 3Quantity Discount
12,600- 12,000=Rs 600 uf
1-3Total Variance13,020-12,000=Rs 1020 UF
1 2 3
Causes of Materials Variances
Materials variances may be caused by a variety of factors, including both internal and external factors
• Investigating materials price variances begins in the purchasing department, but the variance may be beyond the control of purchasing (for ex., prices rise faster than expected)
• Investigating materials quantity variance begins in the production department, but the variance may be beyond the control of production (for ex., faulty machinery)
Formula for Total Labor Variance
Actual Hoursx Actual Rate(AH) x (AR)
Standard Hoursx Standard Rate
(SH) x (SR)
Total LaborVariance
(TLV)=
_
The total labor variance is obtained from the following formula:
Formula for Labor Price Variance
Actual Hoursx Actual Rate(AH) x (AR)
Actual HoursX Standard Rate
(AH) x (SR)
Labor PriceVariance
(LPV)=
_
The formula for the labor price variance is as follows:
Formula for Labor Quantity Variance
Actual Hoursx Standard Rate
(AH) x (SR)
Standard Hoursx Standard Rate
(SH) x (SR)
LaborQuantityVariance
(LQV)
=_
The labor quantity variance is derived from the following formula:
Matrix for Direct Materials Variance
AH X AR2100 X 9.80=20580
AH XSR2100 X 10 =21,000
SH XSR2000 X10= 20,000
1 - 2Price Variance20,580-21,000
=Rs 420 F
2 - 3Quantity Variance
21,000- 20,000=Rs 1000 uf
1-3Total Variance20,580-20,000
=Rs 580UF
1 2 3
Causes of Labor Variances
Labor variances may be caused by a variety of factors
• Labor price variances usually result from either paying workers higher wages than expected or misallocating workers (for ex., using skilled workers in place of unskilled workers)
• Labor quantity variances relate to the efficiency of workers and are usually related to the production department
Actual Overhead Costs
The total overhead variance is the difference between actual overhead costs and overhead costs applied to work done.
Formula for Total Overhead Variance
Actual Overhead
OverheadApplied basedon Standard
Hours Allowed
Total OverheadVariance
=_
With standard costs, manufacturing overhead costs are applied to work in process on the basis of the standard hours allowed for the work done. Standard hours allowed are the hours that should have been worked for the units produced. The formula for the total overhead variance is:
Formula for OverheadControllable Variance
Actual Overhead
OverheadBudgeted based
on Standard Hours Allowed
OverheadControllable
Variance=_
The formula for the Overhead Controllable Variance is shown below:
Formula forOverhead Volume Variance
FixedOverhead
Rate
Normal CapacityHours - Standard
Hours Allowed
Overhead Volume
Variance=X
The Overhead Volume Variance indicates whether fixed costs were efficiently used during the period. The formula for computing the volume variance is as follows:
Alternative Formula for OverheadVolume Variance
OverheadBudgeted based
on StandardHours Allowed
Overhead Applied basedon Standard
Hours Allowed
Overhead Volume
Variance=
_
An alternative formula for computing the volume variance is shown below:
Causes of Manufacturing Overhead Variances
Manufacturing overhead variances may be caused by a variety of factors
• The controllable variance relates to variable manufacturing costs and usually is the responsibility of the production department• May result from either higher than expected use of indirect materials,
indirect labor or supplies or increases in indirect manufacturing costs such as fuel
• The volume variance may be the responsibility of the production department (inefficient use of direct labor hours) or may come from outside the production department (lack of sales orders)
Reporting Variances
Reporting variances• All variances should be reported to appropriate levels of
management as soon as possible so that corrective action can be taken
• The form, content, and frequency of variance reports vary considerably among companies
• Variance reports facilitate the principle of “management by exception”
• In using variance reports, top management normally looks for significant variances
Let’s ReviewLet’s Review
The setting of standards is:The setting of standards is:
a. A managerial accounting decisiona. A managerial accounting decision..
d.d. Preferably set at the ideal level of Preferably set at the ideal level of performance.performance.
c.c. A worker decisionA worker decision.
b.b. A management decisionA management decision
Let’s ReviewLet’s Review
The setting of standards is:The setting of standards is:
a. A managerial accounting decisiona. A managerial accounting decision..
d.d. Preferably set at the ideal level of Preferably set at the ideal level of performance.performance.
c.c. A worker decision.
b.b. A management decisionA management decision