Question: The Mavis Company uses an absorption costing system based on

The Mavis Company uses an absorption costing system based on standard costs. Total variable manufacturing cost, including direct material cost, is $3 per unit; the standard production rate is 10 units per machine-hour. Total budgeted and actual fixed manufacturing overhead costs are $420,000. Fixed manufacturing overhead is allocated at $7 per machine-hour ($420,000 -5- 60,000 machine-hours of denominator level). Selling price is $5 per unit. Variable operating (non-manufacturing) cost, which is driven by units sold, is $1 per unit. Fixed operating (non-manufacturing) costs are $120,000. Beginning inventory in 2013 is 30,000 units; ending inventory is 40,000 units. Sales in 2013 are 540,000 units. The same standard unit costs persisted throughout 2012 and 2013. For simplicity, assume that there are no price, rate, or efficiency variances.
1. Prepare an income statement for 2013 assuming that the production-volume variance is written off at year-end as an adjustment to cost of goods sold.
2. The president has heard about variable costing. She asks you to recast the 2013 statement as it would appear under variable costing.
3. Explain the difference in operating income as calculated in requirements 1 and 2.
4. Graph how fixed manufacturing overhead is accounted for under absorption costing. That is, there will be two lines: one for the budgeted fixed manufacturing overhead (which is equal to the actual fixed manufacturing overhead in this case) and one for the fixed manufacturing overhead allocated. Show how the production-volume variance might be indicated in the graph.
5. Critics have claimed that a widely used accounting system has led to undesirable buildups of inventory levels,
(a) Is variable costing or absorption costing more likely to lead to such buildups? Why?
(b) What can be done to counteract undesirable inventory buildups?

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