C 1. MUF, a CPA firm, has provided audit and tax services to businesses in the London area for over 50 years. Recently, the firm decided to use ABM and activity-based costing to assign its overhead costs to those service functions. Gemma Fior, the company’s controller, is interested in seeing how the change from the traditional to the activity-based costing approach affects the average cost per audit job. The following information has been provided to assist in the comparison:

Total direct labor costs £400,000 Other direct costs 120,000 Total direct costs £520,000 The traditional costing approach assigned overhead costs at a rate of 120 percent of direct labor costs.

Data for activity-based costing of the audit function are as follows:

Activity Cost Driver Activity Cost Rate Activity Usage Professional Number of £2,000 per 50 employees development employees employee Administration Number of jobs £1,000 per job 50 jobs Client Number of new £5,000 per new 29 new clients development clients client 1. Using direct labor cost as the cost driver, calculate the total costs for the audit function. What is the average cost per job?

2. Using activity-based costing to assign overhead, calculate the total costs for the audit function. What is the average cost per job?

3. Calculate the difference in total costs between the two approaches. Why would activity-based costing be the better approach for assigning overhead to the audit function?

4. Your instructor will divide the class into groups to work through the case. One student from each group should present the group’s findings to the class.

ABC and Selling and Administrative Expenses