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Chapter 8: Problem 5

What are the factors that affect the spending variance for variable manufacturing overhead?

Short Answer

Expert verified
The factors that affect the spending variance for variable manufacturing overhead include changes in the actual variable overhead costs (e.g., increase or decrease in the cost of materials, labor, or utilities), inefficiencies or improvements in the production process, changes in actual activity levels (e.g., higher or lower production than originally planned), and variations in the expected costs per unit for variable manufacturing overhead. These factors can impact the actual variable overhead rate, actual activity level, and standard variable overhead rate, which are components of the spending variance formula. Monitoring actual spending and evaluating it against budgeted spending is crucial for companies to identify potential areas for cost-saving and process improvements.

Step by step solution

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1. Identify the components of the spending variance formula

: Spending variance for variable manufacturing overhead is the difference between the actual variable overhead costs and the budgeted variable overhead costs. It can be calculated using the following formula: Spending Variance = (Actual Variable Overhead Rate x Actual Activity Level) - (Standard Variable Overhead Rate x Actual Activity Level) In order to understand the factors affecting this variance, we should first understand the components of this formula, which are actual variable overhead rate, actual activity level, and standard variable overhead rate.
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2. The Actual Variable Overhead Rate

: The actual variable overhead rate represents the total variable manufacturing overhead costs incurred divided by the actual activity level. Factors affecting the actual variable overhead rate can include changes in the cost of materials, labor, or utilities, process inefficiencies, and any other factors that contribute to the total variable costs to produce a given level of output. For example, if the actual variable overhead cost of producing 1,000 units \(6,000 but was initially budgeted to be \)5,000, due to an unpredicted increase in utility costs, then the actual variable overhead rate would have been higher than the budgeted rate.
03

3. The Actual Activity Level

: The actual activity level refers to the number of units produced during a given period. Factors that can affect the actual activity level include production efficiency, demand, and any other factors that contribute to the production level of a company. If production levels are higher or lower than initially planned, the company may experience a spending variance as this will affect the total overhead costs. For example, if the company originally planned to produce 1,000 units but ended up producing only 900 units due to supply chain issues, the actual activity level would be lower than originally planned, which could impact the spending variance.
04

4. The Standard Variable Overhead Rate

: The standard variable overhead rate is the planned cost per unit for variable manufacturing overhead during a given period. Factors that affect the standard variable manufacturing overhead rate include average wages, cost of materials, and utility rates, as well as expected efficiencies in the manufacturing process. For example, if labor wages increase during the production process, the standard variable manufacturing overhead rate might be lower than expected, thus leading to a higher spending variance.
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5. Understanding the factors that affect spending variance

: Now that we have identified the components of the spending variance formula, we can understand the factors that affect spending variance for variable manufacturing overhead. These factors can include: - Changes in the actual variable overhead costs (e.g., increase or decrease in the cost of materials, labor, or utilities) - Inefficiencies or improvements in the production process - Changes in actual activity levels (e.g., higher or lower production than originally planned) - Variations in the expected costs per unit for variable manufacturing overhead Considering these factors, it's crucial for companies to monitor their actual spending and evaluate it against their budgeted spending to identify potential areas for cost-saving and process improvements.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Variable Manufacturing Overhead
Variable manufacturing overhead encompasses costs that fluctuate with production volume. These can include utilities, such as electricity and water used in production, as well as more direct costs like indirect labor and materials. It's essential to understand that these costs increase as production increases and decrease as it decreases.

When managing a business, knowing the nature of variable manufacturing overhead helps in planning and controlling expenses. If your production levels are unpredictable, so will be your variable overheads. Monitoring these costs can help identify inefficiencies or areas for improvement.
  • Costs tied directly to production activity
  • Examples include utilities and indirect materials
  • Affected by production volume changes
Actual Variable Overhead Rate
The actual variable overhead rate is a measure of the real cost incurred for variable overhead per unit of activity. It is calculated by dividing the total actual variable overhead costs by the total actual activity level. This rate indicates how efficiently the resources are used compared to what was planned.

Factors influencing the actual variable overhead rate include unexpected changes in utility prices, labor costs, or process inefficiencies. For instance, if there is a sudden spike in electricity rates, the actual variable overhead might exceed the budgeted amount.

Keeping track of this rate allows managers to adjust their processes or spending plans to minimize unexpected costs.
  • Reflects real costs during production
  • Affected by price changes and inefficiencies
  • Helps identify over-usage or waste
Standard Variable Overhead Rate
The standard variable overhead rate represents the budgeted or planned cost per unit of activity. This rate is typically established at the beginning of a period based on expected costs, such as labor rates, material costs, and utility expenses.

This is crucial for budgeting as it helps set benchmarks against which actual performance is measured. If actual costs are consistently higher than this rate, it may indicate the need to revise the standards or improve efficiency.

Determining an accurate standard rate involves assumptions about future conditions. Regularly revisiting these assumptions can prevent significant spending variances.
  • Planned cost per unit set early
  • Used for budgeting and performance measurement
  • Highlights need for efficiency improvements
Actual Activity Level
The actual activity level refers to the actual amount of production achieved during a specific timeframe. It includes the total units produced or the total machine hours used. Understanding this is vital as it affects the spending variance due to changes in planned versus actual production levels.

Numerous factors can influence the actual activity level, including demand fluctuations, supply chain disruptions, and operational efficiency. For example, if fewer units are produced due to material shortages, this can result in a spending variance.

Monitoring actual activity levels allows businesses to adapt production schedules to match demand and resource availability, optimizing operational costs.
  • Realized production output
  • Impacted by demand and efficiency factors
  • Guides adjustment of production plans

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Most popular questions from this chapter

How do managers plan for variable overhead costs?

Carpenter Company uses standard costing. The company has a manufacturing plant in Georgia. Standard labor-hours per unit a re \(0.50,\) and the variable overhead rate for the Georgia plant is \(\$ 3.50\) per direct labor-hou. Fixed overhead for the Georgia plant is budgeted at \(\$ 1,800,000\) for the year. Firm management has always used variance analysis as a performance measure for the plantt Tom Saban has just been hired as a new controller for Carpenter Company. Tom is good friends with the Georgia plant manager and wants him to get a favorable review. Tom decides to underestimate production, and budgets annual output of 1,200,000 units. His explanation for this is that the economy is slowing and sales are likely to decrease. At the end of the year, the plant reported the following actual results: output of 1,500,000 using 760,000 labor-hours in total, at a cost of \(\$ 2,700,000\) in variable overhead and \(\$ 1,850,000\) in fixed overhead . 1\. Compute the budgeted fixed cost per labor-hour for the fixed overhead. 2\. Compute the variable overhead spending variance and the variable overhead efficiency variance. 3\. Compute the fixed overhead spending and volume variances. 4\. Compute the budgeted fixed cost per labor-hour for the fixed overhead if Tom Saban had estimated production more realistically at the expected sales level of 1,500,000 units. 5\. Summarize the fixed overhead variance based on both the projected level of production of 1,200,000 units and 1,500,000 units. 6\. Did Tom Saban's attempt to make his friend, the plant manager, look better work? Why or why not? 7\. What do you think of Tom Saban's behavior overall?

Describe the difference between a direct materials efficiency variance and a variable manufacturing overhead efficiency variance.

Best Around, Inc., is a manufacturer of vacuums and uses standard costing. Manufacturing overhead (both variable and fixed) is allocated to products on the basis of budgeted machine-hours. In 2017 , budgeted fixed manufacturing overhead cost was \(\$ 17,000,000\). Budgeted variable manufacturing overhead was \(\$ 10\) per machine-hour. The denominator level was 1,000,000 machine- hours. 1\. Prepare a graph for fixed manufacturing overhead. The graph should display how Best Around, Inc.'s fixed manufacturing overhead costs will be depicted for the purposes of (a) planning and control and (b) inventory costing. 2\. Suppose that 1,125,000 machine-hours were allowed for actual output produced in \(2017,\) but 1,200,000 actual machine-hours were used. Actual manufacturing overhead was \(\$ 12,075,000,\) variable, and \(\$ 17,100,000,\) fixed. Compute (a) the variable manufacturing overhead spending and efficiency variances and (b) the fixed manufacturing overhead spending and production- volume variances. Use the columnar presentation illustrated in Exhibit \(8-4\) (page 304 ). 3\. What is the amount of the under- or overallocated variable manufacturing overhead and the under-or overallocated fixed manufacturing overhead? Why are the flexible-budget variance and the under-or overallocated overhead amount always the same for variable manufacturing overhead but rarely the same for fixed manufacturing overhead? 4\. Suppose the denominator level was 1,700,000 rather than 1,000,000 machine- hours. What variances in requirement 2 would be affected? Recompute them.

How does standard costing differ from actual costing?
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