Cost Accounting: A Managerial Emphasis, 6e
Chapter 9 – Income Effects of Denominator Level on Inventory Valuation
19) Betts Wrench Company manufactures socket wrenches. For next month the vice-president of
production plans on producing 4,400 wrenches per day. The company can produce as many as 5,000
wrenches per day, but are more likely to produce 4,500 per day. The demand for wrenches for the next
three years is expected to average 4,250 wrenches per day. Fixed manufacturing costs per month total
$336,600. The company works 20 days a month due to local zoning restrictions. Fixed manufacturing
overhead is charged on a per wrench basis.
Required:
a. What is the theoretical fixed manufacturing overhead rate per wrench?
b. What is the practical fixed manufacturing overhead rate per wrench?
c. What is the normal fixed manufacturing overhead rate per wrench?
d. What is the master-budget fixed manufacturing overhead rate per wrench?
9.2 Explain how the choice of denominator affects capacity management, costing,
pricing, and performance evaluation.
1) The Canada Revenue Agency requires companies to use practical capacity as the denominator-level
concept.
2) Theoretical capacity is rarely used to calculate the budgeted fixed manufacturing cost per case because
it departs significantly from the real capacity available to a company.
3) The downward demand spiral for a company is the continuing reduction in the demand for its
products that occurs when prices of competitors’ products are not met and higher unit costs result in
more reluctance to meet competitors’ prices.