Moody Corporation uses a job-order costing system with a plantwide

predetermined 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 155,000Fixed manufacturing overhead cost$654,000Variable manufacturing overhead cost per machine-hour$4.20
 
Required:
1)Compute the plantwide predetermined overhead rate.
2) During the year, Job 400 was started and completed. The following information was available with respect to this job:
 Direct materials$350Direct labor cost$240Machine-hours used 37
 Compute the total manufacturing cost assigned to Job 400.
3) If Job 400 includes 60 units, what is the unit product cost for this job?
4) If Moody uses a markup percentage of 120% of its total manufacturing cost, then what selling price per unit would it have established for Job 400?