Calculating activity-based costing overhead rates assume that manufacturing overhead for goldratt company consisted of the following activities and costs: setup (1,000 setup hours)$118,000 production scheduling (400 batches)60,000 production engineering (60 change orders)150,000 supervision (2,000 direct labor hours)46,000 machine maintenance (12,000 machine hours)60,000 total activity costs$434,000 the following additional data were provided for job 845: direct materials costs$7,000 direct labor cost (5 milling direct labor hours; 35 finishing direct labor hours)$1,000 setup hours5 hours production scheduling1 batch machine hours used (25 milling machine hours; 5 finishing machine hours)30 hours production engineering3 change orders (a) calculate the cost per unit of activity driver for each activity cost category. setup $answer 118 production scheduling $answer 150 production engineering $answer 2,500 supervision $answer 23 machine maintenance $answer 5 (b) calculate the cost of job 845 using abc to assign the overhead costs. $answer 17,310 (c) calculate the cost of job 845 using the plantwide overhead rate based on machine hours. (round your answer to the nearest dollar.) $answer 9,085 (d) calculate the cost of job 845 using a machine hour departmental overhead rate for the milling department ($32 per hour) and a direct hour overhead rate for the finishing department ($102 per hour). (round your answer to the nearest dollar.)