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 $ 16 per direct labor-hour Order processing $ 186 per order Custom design processing $ 255 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 Model Custom Design Number of gliders 12 W Number of orders 1 3 Number of custom designs 3 Direct labor-hours per glider 28.50 33.00 Selling price per glider $ 1, 800 $ 2, 430 Direct materials cost per glider $ 462 $ 568 The company's direct labor rate is $20 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