Question 5 15 Marks Tesla Corporation uses a job-order costing system with a plantwide overhead rate based on machine- hours. At the beginning of the year, the company made the following estimates: Machine-hours required to support estimated production Fixed manufacturing overhead cost Variable manufacturing overhead cost per machine-hour 100,000 R650,000 R3.00 13 Required: 5.1. 5.2. Calculate the predetermined overhead rate. During the year, Job 400 was started and completed. The following information is available with respect to this job: Direct material requisitioned Direct labour cost Machine-hours used R450 R210 40 Calculate the total manufacturing cost assigned to Job 400. 5.3. During the year, the company worked a total of 146,000 machine-hours on all jobs and incurred actual manufacturing overhead costs of R1,350,000. What is the amount of underapplied or overapplied overhead for the year? If this amount were closed out entirely to Cost of Goods Sold would the journal entry increase or decrease net operating income