29. Carlin and Marley, an accounting firm, provides consulting and tax planning services. For
many years, the firm’s total administrative cost (currently $270,000) has been allocated to
services on this basis of billable hours to clients. A recent analysis found that 55% of the
firm’s billable hours to clients resulted from tax planning services, while 45% resulted from
consulting services.
The firm, contemplating a change to activity-based costing, has identified three components
of administrative cost, as follows:
In-house computing charges
Miscellaneous office costs
A recent analysis of staff support found a strong correlation with the number of clients served.
In contrast, in-house computing and miscellaneous office cost varied directly with the number
of computer hours logged and number of client transactions, respectively. Consulting clients
served totaled 35% of the total client base, consumed 30% of the firm’s computer hours, and
accounted for 20% of the total client transactions.
If Carlin and Marley switched from its current accounting method to an activity-based costing
system, the amount of administrative cost chargeable to consulting services would: