EX. 1 Granite Company uses a job order cost system. The company applies manufacturing overhead to jobs using a predetermined overhead rate based on direct labor-hours. hours respectively, for the year. totaled $2,400 at $6 per hour. the year, and incurred $78,000 in actual manufacturing overhead costs. Required a. Determine the predetermined overhead rate for the year. b. Determine the amount of overhead charged to jobs during the year. c. Determine the amount of under- or over-applied overhead for the year. d. Assuming that 100 units were completed, determine the unit product cost that would Last year, manufacturing overhead and direct labor-hours were estimated at $80,000 and 16,000 In June, Job #315 was completed. Materials costs on the job totaled $1,500 and labor costs At the end of the year, it was determined that the company worked 15,000 direct labor-hours for appear on the job cost sheet/or Job #315. 5 Pe D goooO 16000 - : 200 Appliod 750o 300o