Indigo Access Services Inc. leases access to high-speed computers to small businesses. It provides the following information for the year: Overhead is applied on the basis of computer hours. (a) Compute the predetermined overhead rate. (Round answer to 2 decimal places, eg. 52.75.) Predetermined overhead rate per computer hour Whispering Winds Industries uses activity-based costing to assist management in setting prices for the company's three majo product lines. The following information is available: Compute the activity-based overhead rates. (Round answers to 2 decimal places, e.g. 12.25.)