Standards are important ingredients in planning and controlling a business. You have just seen how they influence the budget preparation process. They are also integral to the assumptions needed for proper cost-volume-profit analysis discussed in an earlier chapter. Standards can also be used in pricing goods and services. Perhaps you have had your car repaired; the bill is likely based on an hourly rate applied to a standard number of hours for the job (your specific repair might have actually taken more or less time).
This chapter will look at how standards are used for performance evaluation via measures of efficiency and cost incurrence. You have perhaps worked in a restaurant. Each cashier may have a standard for how much business they must "ring." Managers have standards for how many tables must be "turned." The bus staff is allowed only so much "breakage." Virtually every business has a similar set of standards. In a traditional manufacturing environment, a unit of finished goods is decomposed into its components to determine how much raw material, labor, and overhead is necessary to produce the item. These component quantities are then considered in terms of what they should cost.
Standards are applicable to manufacturing and nonmanufacturing tasks. Even the accountants who are seen as the monitors of standards are themselves subject to standards. An auditor may be allowed a certain number of hours to audit payroll, verify a bank reconciliation, and so forth. Without standards, the tasks may expand in scope and time, beyond what is prudent or necessary.
Although performance reports may be prepared by managerial accountants, the standards themselves should originate with personnel who best understand the productive process. These personnel should develop standards that are based on realistic information derived from careful study of business processes. For example, an industrial engineer may engage in time and motion studies to determine the appropriate amount of time to complete a given task. Past data may be used to provide realistic measures of the raw material quantity that is needed to complete a finished unit. Some standards are based on averages; total estimated costs are divided by total estimated output or activity. For example, standard variable overhead can be determined by dividing estimated variable overhead by the estimated activity level for the upcoming period. Likewise, fixed standard per-unit overhead would be determined by dividing estimated fixed overhead by the estimated activity level.
PHILOSOPHY OF STANDARDS: It has probably already occurred to you that standards can be set very tight, allowing almost no room for waste or rest. Or, management may adopt a more realistic set of standards that are within reach. After all, standards are somewhat like goals. In playing a round of golf, most players will see "par" as a benchmark against which to compare a score; realistically, few players expect to achieve "par" on a consistent basis. Nevertheless, it constitutes a standard. At other times, golfers will calculate their "handicap" to determine a target score they plan to shoot on a given round of golf. This is also a standard, but one that is expected to be achieved. In setting standards within a business environment, management needs to consciously consider the level of standards to adopt:
- Achievable standards are realistically within reach. Such standards take into account normal spoilage and inefficiency. Such standards are intended to allow workers to reach the established benchmarks. This level of standard provides a clear set of metrics against which job performance can be gleaned. The interpretation is generally unambiguous; when goals are not met, improvement is needed. It is also thought to reduce the opportunity for frustration and discouragement that can be associated with less attainable goals.
- Ideal standards may never be reached. They represent what will result in a state of perfection -- no spoiled goods, no worker fatigue, no errors, etc. The idea behind such standards is that employees will never rest on their laurels. Instead, they will achieve their full potential by striving to hit the lofty goal. Many businesses avoid ideal standards because they fear that employees will see ideal standards as meaningless since they cannot hope to achieve them. In other words, the employees cease to strive for a goal they cannot hope to reach. Further, such goals may not help in performance evaluations; what is the feedback value of telling employees they failed to a meet a such standards (after all, isn't that what was expected)?
VARIANCE ANALYSIS
ACTUAL COSTS VS. STANDARD COSTS: As already mentioned, standard costs provide information that is useful in performance evaluation. Standard costs are compared to actual costs, and mathematical deviations between the two are termed variances. Favorable variances result when actual costs are less than standard costs, and vice versa.
The following illustration is intended to demonstrate the very basic relationship between actual cost and standard cost. AQ means the "actual quantity" of input used to produce the output. AP means the "actual price" of the input used to produce the output. SQ and SP refer to the "standard" quantity and price that was anticipated. As you will soon see, variance analysis can be conducted for each factor of productive input: material, labor, and overhead. For the moment, just focus on the major concept -- variances are simply the difference between actual cost incurred and the standard cost that was appropriate for the achieved production:
Variance analysis is the logical examination of the deviations in an attempt to identify areas for improvement. Management is responsible for careful evaluation of variances. This task is an important part of effective control of an organization. While comparing total actual costs to total standard costs is interesting, it provides little useful information for pinpointing specific problem areas. Instead, management must perform a more penetrating analysis into the detailed variances relating to each factor of production.
- Materials Price Variance: A variance that reveals the difference between the standard price for materials purchased and the amount actually paid for those materials [(standard price - actual price) X actual quantity].
- Materials Quantity Variance: A variance that compares the standard quantity of materials that should have been used to the actual quantity of materials used. The quantity variation is measured at the standard price per unit [(standard quantity - actual quantity) X standard price].
Blue Rail measures their output in "sections." Each section consists of one post and four rails. The sections are 10' in length and the posts average 4' each. Some overage and waste is expected due to the need for an extra post at the end of a set of sections, taller than normal posts, faulty welds, bad pipe cuts, and defective pipe. The company has adopted an achievable standard of 1.25 pieces of raw pipe (50') per section of rail.
During August, Blue Rail produced 3,400 sections of railing. It was anticipated that pipe would cost $80 per 40' piece. Standard material cost for this level of output is computed as follows:
MATERIALS PRICE VARIANCE = (SP - AP) X AQ = ($80 - $90) X 4,100 = <$41,000>
Materials usage was favorable since less material was used (4,100 pieces of pipe) than was standard (4,250 pieces of pipe). This resulted in a favorable materials quantity variance:MATERIALS QUANTITY VARIANCE = (SQ - AQ) X SP = (4,250 - 4,100) X $80 =$12,000
These two variances net (<$41,000> + $12,000) to produce the total $29,000 unfavorable outcome:8-31-XX | 328,000 | |||
Materials Price Variance | 41,000 | |||
369,000 | ||||
To record purchase of raw materials at standard price and related unfavorable variance |
8-31-XX | 340,000 | |||
Raw Materials Inventory | 328,000 | |||
Materials Quantity Variance | 12,000 | |||
To transfer raw materials to production at standard usage rates and related favorable quantity variance |
Examine the following diagram to be sure you understand how these entries play out in the ledger -- the first entry is in green and the second is in blue. As you examine this diagram, notice that the $369,000 of cost is ultimately attributed to work in process inventory ($340,000 debit at standard cost/quantity), materials price variance ($41,000 debit), and materials quantity variance ($12,000 credit):
The Total Direct Labor Variance can be separated into the:
- Labor Rate Variance: A variance that reveals the difference between the standard rate and actual rate for the actual labor hours worked [(standard rate - actual rate) X actual hours].
- Labor Efficiency Variance: A variance that compares the standard hours of direct labor that should have been used to the actual hours worked. The efficiency variance is measured at the standard rate per hour [(standard hours - actual hours) X standard rate].
LABOR RATE VARIANCE = (SR - AR) X AH = ($18 - $14) X 12,500 = $50,000
The hourly wage rate was lower because of a shortage of highly skilled welders. The less experienced welders were paid less per hour but they also worked slower. This inefficiency shows up in the unfavorable labor efficiency variance:LABOR EFFICIENCY VARIANCE = (SH - AH) X SR = (10,200 - 12,500) X $18 =<$41,400>
These two variances net ($50,000 + <$41,400>) to produce the total $8,600 favorable outcome:8-31-XX | 183,600 | |||
Labor Efficiency Variance | 41,400 | |||
Labor Rate Variance | 50,000 | |||
175,000 | ||||
To increase work in process for the standard direct labor costs, and record the related efficiency and rate variances |
VARIABLE VERSUS FIXED OVERHEAD: To begin, recall that overhead has both variable and fixed components (unlike direct labor and direct material that are exclusively variable in nature). The variable components may consist of items like indirect material, indirect labor, and factory supplies. Fixed factory overhead might include rent, depreciation, insurance, maintenance, and so forth. Because variable and fixed costs behave in a completely different fashion, it stands to reason that proper evaluation of variances between expected and actual overhead costs must take into account the intrinsic cost behavior. As a result, variance analysis for overhead is split between variances related to variable overhead and variances related to fixed overhead.
VARIANCES RELATING TO VARIABLE FACTORY OVERHEAD: The cost behavior for variable factory overhead is not unlike direct material and direct labor, and the variance analysis is quite similar. The goal will be to account for the total "actual" variable overhead by applying: (1) the "standard" amount to work in process, and (2) the "difference" to appropriate variance accounts. This accounting objective is no different than observed for direct material and direct labor!
On the left-hand side of the following graphic, notice that more is spent on actual variable factory overhead than is applied based on standard rates. This scenario produces unfavorable variances (also known as "underapplied overhead" since not all that is spent is applied to production). The right-hand side is the opposite scenario (favorable/overapplied overhead). Beneath the graphics are T-accounts intending to illustrate the cost flow. As monies are spent on overhead (wages, utilization of indirect materials, etc.), the cost (xxx) is transferred to the Factory Overhead account. As production occurs, overhead is applied/transferred to Work in Process (yyy). When more is spent than applied (as on the left scale), the balance (zz) is transferred to variance accounts representing the unfavorable outcome. When less is spent than applied (as on the right scale), the balance (zz) represents the favorable overall variances.
Before looking closer at these variances, it is first necessary to recall that overhead is usually applied based on a predetermined rate, such as $X per direct labor hour (you may find it helpful to review this concept from Chapter 19). This means that the amount debited to work in process is driven by the overhead application approach. This will become clearer with the following illustration.
AN ILLUSTRATION OF VARIABLE OVERHEAD VARIANCES: Let's return to the illustration for Blue Rail. Variable factory overhead for August consisted primarily of indirect materials (welding rods, grinding disks, paint, etc.), indirect labor (inspector time, shop foreman, etc.), and other items. Extensive budgeting and analysis had been performed, and it was estimated that variable factory overhead should be applied at $10 per direct labor hour. During August, $105,000 was actually spent on variable factory overhead items. The standard cost for August's production was as follows:
8-31-XX | 102,000 | |||
Variable Overhead Efficiency Variance | 23,000 | |||
Variable OH Spending Variance | 20,000 | |||
105,000 | ||||
To increase work in process for the standard variable overhead, and record the related efficiency and spending variances |
How important is control of overhead? A study of self-made 50-year old millionaires revealed very little correlation between wealth and income, and a strong correlation between wealth and life-long savings patterns. Although the study is related to individuals, the message rings equally true for business. Careful control of spending is essential to long-term value building. Businesses vary considerably in their attitudes and discipline as it relates to control of overhead. Some businesses are rather cavalier about controlling things like light/electricity usage, control over low cost parts, efficiency in shipping methods, etc. Others are rather fanatical about maintaining absolute and stringent controls. For instance, one controller of a manufacturing plant was frustrated with the number of screws that were dropped and left to be swept away at the end of each business day. These were seemingly insignificant to the employees. In frustration, the controller scattered a box of nickels onto the factory floor -- by the end of the day none remained for the janitorial staff to sweep away. A subsequent memo was issued reminding everyone that screws cost 5¢ each. The rather obvious point was to draw a comparison between the nickels that everyone was eager to recover and the screws for which there was little concern. To build a successful business, a good manager will keep a keen eye on all overhead items, and control them with vigor. The variable overhead variances are macro indicators of success in accomplishing this goal.
VARIANCES RELATING TO FIXED FACTORY OVERHEAD: Frequently (but not always), actual fixed factory overhead will show little variation from budget. This results because of the intrinsic nature of a fixed cost. For instance, rent is usually subject to a lease agreement that is relatively certain. Depreciation on factory equipment can be calculated in advance. The costs of insurance policies are negotiated and tied to a contract. Even though budget and actual numbers may differ little in the aggregate, the underlying fixed overhead variances are nevertheless worthy of close inspection.
AN ILLUSTRATION OF FIXED OVERHEAD VARIANCES: Let's take one final look at Blue Rail. Assume that the company budgeted total fixed overhead at $72,000; only $70,000 was actually spent (seemingly a good outcome). Here our accounting objective will be to allocate the $70,000 actually spent between work in process and variance accounts. The temptation would be to book $72,000 into work in process and reflect a $2,000 offsetting favorable variance -- but that would be the wrong approach!
Instead, the Work in Process account should reflect the standard fixed overhead cost for the output actually produced. We get to this calculated value by reconsidering the company's original assumptions about production. Assume that Blue Rail had planned on producing 4,000 rail systems during the month; remember that only 3,400 systems were actually produced -- output was disappointing, perhaps due to the inexperienced labor pool. This means that the planned fixed overhead was $18 per rail ($72,000/4,000 = $18). Because three labor hours are needed per rail, the fixed overhead allocation rate is $6 per direct labor hour ($18/3). Use this new information to consider the following illustration for fixed factory overhead (remember from the earlier discussion that the standard labor hours for the actual output were 10,200):
8-31-XX | 61,200 | |||
Fixed Overhead Volume Variance | 10,800 | |||
Fixed OH Spending Variance | 2,000 | |||
70,000 | ||||
To increase work in process for the standard fixed overhead, and record the related volume and spending variances |
EXAMINING VARIANCES: Not all variances need to be analyzed. One must consider the circumstances under which the variances resulted and the materiality of amounts involved. One should also understand that not all unfavorable variances are bad. For example, buying raw materials of superior quality (at higher than anticipated prices) may be offset by reduction in waste and spoilage. Likewise, favorable variances are not always good. Blue Rail's very favorable labor rate variance resulted from using inexperienced, less expensive labor. Was this the reason for the unfavorable outcomes in efficiency and volume? Perhaps! The challenge for a good manager is to take the variance information, examine the root causes, and take necessary corrective measures to fine tune business operations.
In closing this discussion of standards and variances, be mindful that care should be taken in examining variances. If the original standards are not accurate and fair, the resulting variance signals will themselves can prove quite misleading.
BALANCED SCORECARD APPROACH TO PERFORMANCE EVALUATION
With the balanced scorecard approach, an array of performance measurements are developed. Each indicator should be congruent with the overall entity objectives. Further, each measure should be easily determined and understood. These measurements can relate to financial outcomes, customer outcomes, or business process outcomes. Although a balanced scorecard approach may include target thresholds that should be met, the primary mantra is on improvement. This means that all participants are continually striving to beat pre-existing scores for each measure.
Early in this chapter, you saw how responsibility accounting concepts caused performance reports to be prepared for different steps in the corporate ladder. This notion is equally applicable to the balanced scorecard approach. The overall corporate entity may have macro targets and measures. Similarly, sub-units will have their own unique goals. A scorecard approach can even be pushed down to the individual employee level. For instance, a retail store may require that tellers complete a certain number of transactions per hour. This "quota" in essence would represent a nonfinancial metric that can be scored for each employee.
THE BALANCED SCORECARD IN OPERATION: You saw for Blue Rail Manufacturing a number of examples of financial goals that could be included in a balanced scorecard assessment. Examples include the standard cost for material, the standard labor hours per rail set, the expected production level, and so forth. But, what would be some examples of customer outcomes and business process outcomes?
- Potential Customer Outcomes:
- Results of a customer satisfaction survey
- Product returns/warranty work rates
- The frequency that customers reorder (or do not reorder)
- Estimated market share
- New customers that are based on referrals of existing customers
- Frequency that customer bids lead to customer orders
- Customer complaint/compliment rates
- Price in comparison to competitors
- Potential Business Process Outcomes
- Defect free units as a proportion of total production
- Frequency/size of product liability claims
- Time from order receipt to shipment
- Size of customer order backlogs
- Lost production days due to out-of-stock raw materials or equipment failure
- Employee turnover rate
- Employee morale survey results
- Employee accident rates/claims for workers' compensation
- Average experience level of employees
The metrics are intended to measure progress toward fulfillment of the corporate objectives, and the managerial accountant is apt to be heavily involved in gathering the necessary data for inclusion in the balanced scorecard performance reports. These reports are often graphical in nature to facilitate easy use and interpretation, with particular emphasis on timely identification of trends. Sometimes, the metrics are prominently posted in the work place; perhaps you have seen a sign at a construction site noting the number of consecutive accident free work days. By prominent display of such data, employees are constantly reminded of, and vigilant to meet, key performance goals.