Holtz Housecleaning provides housecleaning services to its clients. The company uses an activity-based costing system for its overhead costs. The company has provided the following data from its activity-based costing system.

Activity Cost Pool	Total Cost	Total Activity
Cleaning	$263,784	34,800 hours
Job support	145,180	7,000 jobs
Client support	4,774	220 clients
Other	170,000	Not applicable
Total	$583,738

The "Other" activity cost pool consists of the costs of idle capacity and organization-sustaining costs. One particular client, the Grieg family, requested 45 jobs during the year that required a total of 90 hours of housecleaning. For this service, the client was charged $2,000.

Required:

a. Compute the activity rates (i.e., cost per unit of activity) for the activity cost pools. Round off all calculations to the nearest whole cent.

b. Using the activity-based costing system, compute the customer margin for the Grieg family. Round off all calculations to the nearest whole cent.

c. Assume the company decides instead to use a traditional costing system in which ALL costs are allocated to customers on the basis of cleaning hours. Compute the margin for the Grieg family. (Round off all calculations to the nearest whole cent.)

(Hint: Remember to first calculate the predetermined OH rate using the total cost / Total cleaning hours.)

(Also note that this is a service company, so there will be no direct materials used.)