Ook inces Thermal Rising, Incorporated, 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 $ 18 per direct labor-hour Order processing $ 192 per order Custom design processing 5 271 per custom design Customer service $ 426 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 Modet Design Number of gliders 13 3 Number of orders 1 3 Number of custom designs @ 3 Direct labor-hours per glider 27.50 32.08 Selling price per glider $ 1,800 $ 2,400 Direct materials cost per glider $ 452 $ 578 The company's direct labor rate is $16 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