Reamer Corporation uses a predetermined overhead rate based on machine-hours to apply manufacturing overhead to jobs. The Corporation has provided the following estimated costs for next year: Direct materials $ 1,000 Direct labor $ 3,000 Sales commissions $ 4,000 Salary of production supervisor $ 2,000 Indirect materials $ 400 Advertising expense $ 800 Rent on factory equipment $ 1,000 Reamer estimates that 500 direct labor-hours and 1,000 machine-hours will be worked during the year. The predetermined overhead rate per hour will be: