Question

Green Thumb Gardening is a small gardening service that uses activity-based costing to estimate costs for pricing and other purposes. The proprietor of the company believes that costs are driven primarily by the size of customer lawns, the size of customer garden beds, the distance to travel to customers, and the number of customers. In addition, the costs of maintaining garden beds depends on whether the beds are low maintenance beds (mainly ordinary trees and shrubs) or high maintenance beds (mainly flowers and exotic plants). Accordingly, the company uses the five activity cost pools listed below:

Activity Cost Pool	Activity Measure
Caring for lawn	Square feet of lawn
Caring for garden beds–low maintenance	Square feet of low maintenance beds
Caring for garden beds–high maintenance	Square feet of high maintenance beds
Travel to jobs	Miles
Customer billing and service	Number of customers

The company already has completed its first stage allocations of costs and has summarized its annual costs and activity as follows:

  

Activity Cost Pool	Estimated Overhead Cost		Expected Activity
Caring for lawn	$	79,400	185,000	square feet of lawn
Caring for garden beds–low maintenance	$	32,000	25,000	square feet of low maintenance beds
Caring for garden beds–high maintenance	$	52,630	19,000	square feet of high maintenance beds
Travel to jobs	$	3,400	16,000	miles
Customer billing and service	$	7,100	38	customers

Compute the activity rate for each of the activity cost pools

Activity Cost Pool	Activity Rate
Caring for lawn		per square ft of lawn
Caring for garden beds—low maintenance		per square ft of low maintenance beds
Caring for garden beds—high maintenance		per square ft of high maintenance beds
Travel to jobs		per mile
Customer billing and service		per customer

Answer 1

Activity Rate = Estimated Overhead/Activity Cost Driver