Kody Corporation uses a job-order costing system with a plant wide overhead rate based on machine hours. At the beginning of the year, the company made the following estimates: . Estimated manufacturing overhead for the month was $1,350,000 and estimated machine hours for the month is 150,000 hours. During the year Job 500 was started and completed. The following information was available with respect to this job: direct materials requisitioned $350 direct labour cost $230 machine hours used 30 REQUIRED: a) Calculate the predetermined overhead rate? b) Compute the total manufacturing cost assigned to Job 500. c) During the year the company worked a total of 147,000 machine-hours on all jobs and incurred actual manufacturing overhead costs of $1,325,000. Determine if total manufacturing overhead was underapplied or overapplied during the month and by how much