Thermal Rising, Inc., makes paragliders for sale through specialty sporting goods stores. The company has a standard paraglider model, but also makes custom-designed paragliders. Management has designed an activity-based costing system with the following activity cost pools and activity rates: Activity Cost Pool Activity Rate Supporting direct labor $ 20 per direct labor-hour Order processing $ 188 per order Custom design processing $ 266 per custom design Customer service $ 418 per customer Management would like an analysis of the profitability of a particular customer, Big Sky Outfitters, which has ordered the following products over the last 12 months: Standard Custom Model Design Number of guide 14 3 Number of orders 2 3 Number of custom designs 0 3 Direct labor-hours per glider 27.50 32.00 Selling price per glider $1,900 $2,420 Direct materials cost per glider $ 480 $ 586 The company's direct labor rate is $18 per hour. Required: Using the company's activity-based costing system, compute the customer margin of Big Sky Outfitters. (Round your intermediate calculations and final answer to the nearest whole dollar amount. Loss amounts should be entered with a minus sign.) Customer margin