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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 Supporting direct labor Order processing Custom design processing Customer service Activity Rate $ 18 per direct labor-hour $ 202 per order $ 256 per custom design $ 432 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 15 Custom Design 3 3 Number of gliders Number of orders Number of custom designs Direct labor-hours per glider Selling price per glider Direct materials cost per glider 0 26.50 $ 1,875 $ 464 33.00 $ 2, 420 $ 568 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.) Answer is complete but not entirely correct. Customer margin $ 6,839 X