Harootunian Corporation uses a job-order costing system with a single plantwide predetermined overhead rate based on machine- hours. The company based its predetermined overhead rate for the current year on the following data: Total machine-hours Total fixed manufacturing overhead cost Variable manufacturing overhead per machine hour 80,000 $312,000 $ 2.10 Recently, Job T629 was completed with the following characteristics: Number of units in the job Total machine-hours 50 200 The predetermined overhead rate is closest to: Multiple Choice o $8.10 per machine-hour o $6.00 per machine-hour o $3.90 per machine-hour o $2.10 per machine-hour