Dallas company uses a job order costing system the company Executives estimate that direct labor would be 5,510,000 (290,000 hours at $19 an hour) and that factory overhead would be $1,590,000 for the current period at the end of the period the records show that there had been 270000 hours of direct labor and 1,290,000 of actual overhead cost using direct labor hours as a base what was the predetermined overhead rate