During the year, the company completed Job 440 , which contained 10,000 units, and recorded the following actual data: Currently, the company uses a plantwide predetermined overhead rate based on direct labour hours to assign overhead to jobs. Required (A) Compute the predetermined overhead rate and use it to compute the per-unit manufacturing cost for Job 440 . (B) Now assume that the company uses departmental rates to assign overhead to jobs. In the Machining department, overhead is assigned on the basis of machine hours. In the Assembly department, overhead is assigned on the basis of direct labour hours. Compute the predetermined departmental rates and, using those, recompute the per-unit manufacturing cost for job 440 . (C) Which method do you recommend the company use to assign overhead? Why? Justify your recommendation