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.

CCS Service Category	Activity Base	Budgeted Cost		Budgeted Activity Base Quantity
Help desk	Number of calls	$141,360		3,800
Network center	Number of devices monitored	719,050		9,850
Electronic mail	Number of user accounts	55,500		5,550
Smartphone support	Number of smartphones issued	148,800		9,300

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 5,000 employees, of whom 40% are office employees.

All the office employees have been issued a smartphone, and 80% of them have a computer on the network.

95 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 270 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 place

CCS Service Category	Service Charge Rate
Help desk	$
Network center	$
Electronic mail	$
Smartphone support	$

b. Determine the charges to the COMM sector for the four CCS service categories for October. Round your answers to the nearest dollar amount.

October charges to the COMM sector:
Help desk charge	$
Network center charge	$
Electronic mail charge	$
Smartphone support charge	$