Omega, inc., projects the following costs for its maintenance department for the coming year. fixed costs (salaries, machine oil): $100,000 per year variable costs (cleaning supplies): $2.50 per maintenance hour if the total estimated usage of the maintenance department is 20,000 hours, calculate a single charging rate for the maintenance department. (round your answer to two decimal places.)

Moody corporation uses a job-order costing system with a plantwide predetermined overhead rate based on machine-hours. at the beginning of the year, the company made the following estimates: machine-hours required to support estimated production 100,000 fixed manufacturing overhead cost $ 650,000 variable manufacturing overhead cost per machine-hour $ 3.00 required: 1. compute the plantwide predetermined overhead rate. 2. during the year, job 400 was started and completed. the following information was available with respect to this job: direct materials $ 450 direct labor cost $ 210 machine-hours used 40