Service Department Charges and Activity Bases Middler Corporation, a manufacturer of electronics and communications systems, uses a service department charge system to charge profit centers with Computing and Communications Services (CCS) service department costs. The following table identifies an abbreviated list of service categories and activity bases used by the CCS department. The table also includes some assumed cost and activity base quantity information for each service for October. Budgeted Activity CCS Service Category Help desk Activity Base Number of calls Budgeted Cost Base Quantity $90,750 2,500 Network center Number of devices monitored 532,525 8,950 Electronic mail Number of user accounts Smartphone support Number of smartphones issued 59,400 120,960 6,600 8,400 One of the profit centers for Middler Corporation is the Communication Systems (COMM) sector. Assume the following information for the COMM sector: The sector has 4,000 employees, of whom 50% are office employees. All the office employees have been issued a smartphone, and 70% of them have a computer on the network. 90 percent of the employees with a computer also have an e-mail account. The average number of help desk calls for October was 1 call per individual with a computer. There are 260 additional printers, servers, and peripherals on the network beyond the personal computers. a. Determine the service charge rate for the four CCS service categories for October. Round your answers to two decimal places. CCS Service Category Service Charte