Christofferse Corporation bases its predetermined overhead rate on the estimated machine-hours for upcoming year. Data for the most recently completed year appear below: Estimates made at the beginning of the year: 38,000 Estimated variable manufacturing overhead $3.33 per machine-hour Estimated total fixed manufacturing overhead... $548,720 33,700 Actual machine-hours for the yea.. Required: edetermined overhead rate for the recently completed year. Compute the company's predetermined overhead rat