Morty Ltd. manufactures custom bicycles for a variety of uses. The following data have been recorded for Job 47-77, which was recently completed. Direct materials used cost $12,500. There were 320 direct labour hours worked on this job at a direct labour wage rate of $18 per hour. There were 120 machine hours used on this job. The predetermined overhead rate is $25 per machine hour used. What is the total manufacturing cost of Job 47-77. $21,260 $18,380 $18,405 $12,940