Waterway Company estimates that annual manufacturing overhead costs will be $900,000. Estimated annual operating activity bases are direct labor cost $400,000, direct labor hours 500,000 , and machine hours 100,000 . Compute the predetermined overhead rate for each activity base. (Round answers to 2 decimal places, e.g. 10.50.) Overhead rate per direct labor cost Overhead rate per direct labor hour Overhead rate per machine hour % $ $