Hojoco Enterprises makes a variety of products that it sells to other businesses. The company's 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)	$5.20	per DLH
	Processing batches	Number of batches	$107.55	per batch
	Processing orders	Number of orders	$88.75	per order
	Serving customers	Number of customers	$1,793.00	per customer

The cost of serving customers, $1,793.00 per customer, is the cost of serving a customer for one year. Rolf Corporation buys only one of the company's products. The details of last year's purchases of this product are listed below:

	Number of units sold to Rolf	900	units
	Number of batches	8	batches
	Number of orders	2	orders
	Direct labor-hour requirement	0.25	DLHs per unit
	Selling price	$16.30	per unit
	Direct materials cost	$6.60	per unit
	Direct labor cost	$5.00	per unit

Required:

How much is the customer margin on sales to Rolf Corporation for the year?