Concept explainers
Evans, Inc., has a unit-based costing system. Evans’s Miami plant produces 10 different electronic products. The demand for each product is about the same. Although they differ in complexity, each product uses about the same labor time and materials.
The plant has used direct labor hours for years to assign overhead to products. To help design engineers understand the assumed cost relationships, the Cost Accounting Department developed the following cost equation. (The equation describes the relationship between total
The variable rate of $30 is broken down as follows:
Because of competitive pressures, product engineering was given the charge to redesign products to reduce the total cost of manufacturing. Using the above cost relationships, product engineering adopted the strategy of redesigning to reduce direct labor content. As each design was completed, an engineering change order was cut, triggering a series of events such as design approval, vendor selection, bill of materials update, redrawing of schematic, test runs, changes in setup procedures, development of new inspection procedures, and so on.
After one year of design changes, the normal volume of direct labor was reduced from 250,000 hours to 200,000 hours, with the same number of products being produced. Although each product differs in its labor content, the redesign efforts reduced the labor content for all products. On average, the labor content per unit of product dropped from 1.25 hours per unit to one hour per unit. Fixed overhead, however, increased from $5,000,000 to $6,600,000 per year.
Suppose that a consultant was hired to explain the increase in fixed overhead costs. The consultant’s study revealed that the $30 per hour rate captured the unit-level variable costs; however, the cost behavior of other activities was quite different. For example, setting up equipment is a step-fixed cost, where each step is 2,000 setup hours, costing $90,000. The study also revealed that the cost of receiving goods is a function of the number of different components. This activity has a variable cost of $2,000 per component type and a fixed cost that follows a step-cost pattern. The step is defined by 20 components with a cost of $50,000 per step. Assume also that the consultant indicated that the design adopted by the engineers increased the demand for setups from 20,000 setup hours to 40,000 setup hours and the number of different components from 100 to 250. The demand for other non-unit-level activities remained unchanged. The consultant also recommended that management take a look at a rejected design for its products. This rejected design increased direct labor content from 250,000 hours to 260,000 hours, decreased the demand for setups from 20,000 hours to 10,000 hours, and decreased the demand for purchasing from 100 component types to 75 component types, while the demand for all other activities remained unchanged.
Required:
- 1. Using normal volume, compute the manufacturing cost per labor hour before the year of design changes. What is the cost per unit of an “average” product?
- 2. Using normal volume after the one year of design changes, compute the manufacturing cost per hour. What is the cost per unit of an “average” product?
- 3. Before considering the consultant’s study, what do you think is the most likely explanation for the failure of the design changes to reduce manufacturing costs? Now use the information from the consultant’s study to explain the increase in the average cost per unit of product. What changes would you suggest to improve Evans’s efforts to reduce costs?
- 4. Explain why the consultant recommended a second look at a rejected design. Provide computational support. What does this tell you about the strategic importance of cost management?
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Chapter 11 Solutions
EBK CORNERSTONES OF COST MANAGEMENT
- Larsen, Inc., produces two types of electronic parts and has provided the following data: There are four activities: machining, setting up, testing, and purchasing. Required: 1. Calculate the activity consumption ratios for each product. 2. Calculate the consumption ratios for the plantwide rate (direct labor hours). When compared with the activity ratios, what can you say about the relative accuracy of a plantwide rate? Which product is undercosted? 3. What if the machine hours were used for the plantwide rate? Would this remove the cost distortion of a plantwide rate?arrow_forwardBrees, Inc., a manufacturer of golf carts, has just received an offer from a supplier to provide 2,600 units of a component used in its main product. The component is a track assembly that is currently produced internally. The supplier has offered to sell the track assembly for 66 per unit. Brees is currently using a traditional, unit-based costing system that assigns overhead to jobs on the basis of direct labor hours. The estimated traditional full cost of producing the track assembly is as follows: Prior to making a decision, the companys CEO commissioned a special study to see whether there would be any decrease in the fixed overhead costs. The results of the study revealed the following: 3 setups1,160 each (The setups would be avoided, and total spending could be reduced by 1,160 per setup.) One half-time inspector is needed. The company already uses part-time inspectors hired through a temporary employment agency. The yearly cost of the part-time inspectors for the track assembly operation is 12,300 and could be totally avoided if the part were purchased. Engineering work: 470 hours, 45/hour. (Although the work decreases by 470 hours, the engineer assigned to the track assembly line also spends time on other products, and there would be no reduction in his salary.) 75 fewer material moves at 30 per move. Required: 1. Ignore the special study, and determine whether the track assembly should be produced internally or purchased from the supplier. 2. Now, using the special study data, repeat the analysis. 3. Discuss the qualitative factors that would affect the decision, including strategic implications. 4. After reviewing the special study, the controller made the following remark: This study ignores the additional activity demands that purchasing would cause. For example, although the demand for inspecting the part on the production floor decreases, we may need to inspect the incoming parts in the receiving area. Will we actually save any inspection costs? Is the controller right?arrow_forwardMedical Tape makes two products: Generic and Label. It estimates it will produce 423,694 units of Generic and 652,200 of Label, and the overhead for each of its cost pools is as follows: It has also estimated the activities for each cost driver as follows: How much is the overhead allocated to each unit of Generic and Label?arrow_forward
- Silven Company has identified the following overhead activities, costs, and activity drivers for the coming year: Silven produces two models of cell phones with the following expected activity demands: 1. Determine the total overhead assigned to each product using the four activity drivers. 2. Determine the total overhead assigned to each model using the two most expensive activities. The costs of the two relatively inexpensive activities are allocated to the two expensive activities in proportion to their costs. 3. Using ABC as the benchmark, calculate the percentage error and comment on the accuracy of the reduced system. Explain why this approach may be desirable.arrow_forwardThe management of Wheeler Company has decided to develop cost formulas for its major overhead activities. Wheeler uses a highly automated manufacturing process, and power costs are a significant manufacturing cost. Cost analysts have decided that power costs are mixed; thus, they must be broken into their fixed and variable elements so that the cost behavior of the power usage activity can be properly described. Machine hours have been selected as the activity driver for power costs. The following data for the past eight quarters have been collected: Required: 1. Prepare a scattergraph by plotting power costs against machine hours. Does the scatter-graph show a linear relationship between machine hours and power cost? 2. Using the high and low points, compute a power cost formula. 3. Use the method of least squares to compute a power cost formula. Evaluate the coefficient of determination. 4. Rerun the regression and drop the point (20,000; 26,000) as an outlier. Compare the results from this regression to those for the regression in Requirement 3. Which is better?arrow_forwardPelder Products Company manufactures two types of engineering diagnostic equipment used in construction. The two products are based upon different technologies, X-ray and ultrasound, but are manufactured in the same factory. Pelder has computed the manufacturing cost of the X-ray and ultrasound products by adding together direct materials, direct labor, and overhead cost applied based on the number of direct labor hours. The factory has three overhead departments that support the single production line that makes both products. Budgeted overhead spending for the departments is as follows: Pelders budgeted manufacturing activities and costs for the period are as follows: The budgeted cost to manufacture one ultrasound machine using the activity-based costing method is: a. 225. b. 264. c. 293. d. 305.arrow_forward
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- Geneva, Inc., makes two products, X and Y, that require allocation of indirect manufacturing costs. The following data were compiled by the accountants before making any allocations: The total cost of purchasing and receiving parts used in manufacturing is 60,000. The company uses a job-costing system with a single indirect cost rate. Under this system, allocated costs were 48,000 and 12,000 for X and Y, respectively. If an activity-based system is used, what would be the allocated costs for each product?arrow_forwardBig Mikes, a large hardware store, has gathered data on its overhead activities and associated costs for the past 10 months. Nizam Sanjay, a member of the controllers department, believes that overhead activities and costs should be classified into groups that have the same driver. He has decided that unloading incoming goods, counting goods, and inspecting goods can be grouped together as a more general receiving activity, since these three activities are all driven by the number of receiving orders. The 10 months of data shown below have been gathered for the receiving activity. Required: 1. Prepare a scattergraph, plotting the receiving costs against the number of purchase orders. Use the vertical axis for costs and the horizontal axis for orders. 2. Select two points that make the best fit, and compute a cost formula for receiving costs. 3. Using the high-low method, prepare a cost formula for the receiving activity. 4. Using the method of least squares, prepare a cost formula for the receiving activity. What is the coefficient of determination?arrow_forwardMott Company recently implemented a JIT manufacturing system. After one year of operation, Heidi Burrows, president of the company, wanted to compare product cost under the JIT system with product cost under the old system. Motts two products are weed eaters and lawn edgers. The unit prime costs under the old system are as follows: Under the old manufacturing system, the company operated three service centers and two production departments. Overhead was applied using departmental overhead rates. The direct overhead costs associated with each department for the year preceding the installation of JIT are as follows: Under the old system, the overhead costs of the service departments were allocated directly to the producing departments and then to the products passing through them. (Both products passed through each producing department.) The overhead rate for the Machining Department was based on machine hours, and the overhead rate for assembly was based on direct labor hours. During the last year of operations for the old system, the Machining Department used 80,000 machine hours, and the Assembly Department used 20,000 direct labor hours. Each weed eater required 1.0 machine hour in Machining and 0.25 direct labor hour in Assembly. Each lawn edger required 2.0 machine hours in Machining and 0.5 hour in Assembly. Bases for allocation of the service costs are as follows: Upon implementing JIT, a manufacturing cell for each product was created to replace the departmental structure. Each cell occupied 40,000 square feet. Maintenance and materials handling were both decentralized to the cell level. Essentially, cell workers were trained to operate the machines in each cell, assemble the components, maintain the machines, and move the partially completed units from one point to the next within the cell. During the first year of the JIT system, the company produced and sold 20,000 weed eaters and 30,000 lawn edgers. This output was identical to that for the last year of operations under the old system. The following costs have been assigned to the manufacturing cells: Required: 1. Compute the unit cost for each product under the old manufacturing system. 2. Compute the unit cost for each product under the JIT system. 3. Which of the unit costs is more accurate? Explain. Include in your explanation a discussion of how the computational approaches differ. 4. Calculate the decrease in overhead costs under JIT, and provide some possible reasons that explain the decrease.arrow_forward
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