Colby Company makes cases for cell phones of all sizes and types for sale through specialty retailers. The company makes a standard model for the most recent iPhone as well as a deluxe model. Management has designed an ABC system with the following activity cost pools and activity rates for these models: Activity Cost Pool Order processing Supporting manufacturing Customer service Activity Rates $2 per direct labour-hour $15 per order $56 per customer Management would like an analysis of the profitability of a particular customer, Cell City, which has ordered the following products over the last 12 months: Standard Deluxe Number of cases Number of orders Direct labour-hours per case Model 150 Model 35 5 2 0.25 0.40 Selling price per case $ 35 $ 55 Direct materials cost per case $ 12 $ 15 The company's direct labour rate is $16 per hour. Required: Using the company's ABC system, compute the customer margin of Cell City. Sales Costs: Direct materials Direct labour Supporting manufacturing Order processing Customer service Customer margin