The formula for computing the predetermined overhead rate is: Predetermined overhead rate = Estimated total manufacturing overhead cost + Estimated total amount of the allocation base True False Thach Corporation uses a job-order costing system with a single plantwide predetermined overhead rate based on machine-hours fixed manufacturing overhead cost of $665,000, variable manufacturing overhead of $3.00 per machine-hour, and 70,000 machine Number of units in the job Total machine hours Direct materials Direct labor cost $ 2,880 The unit product cost for job T321 is closest to: CA$117.00 R$58,50 O $154.50 co $51.50