Howell Corporation's activity-based costing system has three activity cost pools--Machining, Setting Up, and Other. The company's overhead costs, which consist of equipment depreciation and indirect labor, are allocated to the cost pools in proportion to the activity cost pools' consumption of resources.

Equipment depreciation (total)	$	27,500
Indirect labor (total)	$	7,670

Distribution of Resource Consumption Across Activity Cost Pools

	Machining	Setting Up	Other
Equipment depreciation	0.30	0.40	0.30
Indirect labor	0.20	0.30	0.50

Costs in the Machining cost pool are assigned to products based on machine-hours (MHs) and costs in the Setting Up cost pool are assigned to products based on the number of batches. Costs in the Other cost pool are not assigned to products.

	MHs	Batches
Product S4	8,200	1,100
Product C0	3,500	1,900
Total	11,700	3,000

Additional data concerning the company's products appears below:

	Product S4			Product C0
Sales (total)	$	86,000		$	68,100
Direct materials (total)	$	30,600		$	24,600
Direct labor (total)	$	38,500		$	26,600

Required:

a. Assign overhead costs to activity cost pools using activity-based costing.

b. Calculate activity rates for each activity cost pool using activity-based costing.

c. Determine the amount of overhead cost that would be assigned to each product using activity-based costing.

d. Determine the product margins for each product using activity-based costing.