Mustafa Enterprises makes a variety of products that it sells to other businesses. The companys activity-based costing system has four activity cost pools for assigning costs to products and customers. Details concerning that ABC system are listed below:

Activity Cost Pool	Activity Measure	Activity Rate
Supporting assembly	Direct labor-hours (DLHs)	$	7.50	per DLH
Processing batches	Number of batches	$	111.65	per batch
Processing orders	Number of orders	$	86.00	per order
Serving customers	Number of customers	$	2,737.00	per customer

The cost of serving customers, $2,737.00 per customer, is the cost of serving a customer for one year. Dahle Corporation buys only one of the companys products. The details of last years purchases of this product are listed below:

Number of units purchased		800	units
Number of batches		16	batches
Number of orders		4	order
Direct labor-hour requirement		0.40	DLHs per unit
Selling price	$	24.25	per unit
Direct materials cost	$	7.45	per unit
Direct labor cost	$	7.85	per unit

According to the ABC system, the total cost of the activity "Supporting assembly" for this customer this past year was closest to: