Target Company uses a job-order costing system. The company applies manufacturing overhead to jobs using a pre-determined overhead rate BASED on DIRECTLABRO HOURS. Last year manufacturing overhead and direct labor hours were estimated at $80,000 and 16,000 hours respectively for the year. In June, JOB# 315 was completed. Materials costs on the job totaled $1,500 and labor costs totaled $2,400 at $6 per hour. At the end of the year, it was determined that the company worked a total of 15,000 direct labor hours covering ALL jobs. The amount of ACTUAL overhead incurred was $78,000.

1. Determine the predetermined overhead rate for the year

2. Determined the amount of overhead charged to JOB#315.

3. Determine the amount of overhead OVER-or UNDERAPPLIED to all jobs.

4. Assuming that 100 units were completed, determine the UNIT COST that would appear on the JOB COST sheet for JOB#315.