Bartolo Delivery has two divisions, air express and ground service, that share the common costs of the company's communication network, which are $8,400,000 a year. You have the following information about the two divisions and the common communicati network Air express Calls (thousands) 532,000 228,000 Time on Network (hours) 335,000 1,005,000 Ground service Required: a. What is the communications network cost that is charged to each division if the number of calls is used as the allocation basis? b. What is the communications network cost to each division using time on network as the allocation basis? Complete this question by entering your answers in the tabs below. Required A Required B What is the communications network cost that is charged to each division if the number of calls is used as the allocation basis? (Do not round intermediate calculations.) Division Network Cost Air express Ground service