Landen Corporation uses a job-order costing system. At the beginning of the year, the company made the following estimates: Direct labor-hours required to support estimated production Machine-hours required to support estimated production Fixed manufacturing overhead cost Variable manufacturing overhead cost per direct labor-hour Variable manufacturing overhead cost per machine-hour 115,000 57,500 $ 322,000 $ 3.40 $ 6.80 During the year, Job 550 was started and completed. The following information is available with respect to this job: Direct materials Direct labor cost Direct labor-hours Machine-hours Required: $ 252 $370 15 5 1 Assume that Landen has historically used a plantwide predetermined overhead rate with direct labor-hours as the allocation base. Under this approach: a. Compute the plantwide predetermined overhead rate b Compute the total manufacturing cost of Job 550 It Landen uses a markup percentage of 200% of its total manufacturing cost, what selling price would it establish for Job 550? 2. Assume that Landen's controller believes that machine-hours is a better allocation base than direct labor-fours Under this approach a Compute the plantwide predetermined overhead rate b. Compute the total manufacturing cost of Job 550 c If Landen uses a markup percentage of 200% of its total manufacturing cost, what selling puce would it establish for Job 550?