Skinner Industries manufactures a variety of custom products. The company has traditionally used a plantwide manufacturing overhead rate based on machine hours to allocate manufacturing overhead to its products. The company estimates that it will incur $1,770,000 in total manufacturing overhead costs in the upcoming year and will use 15,000 machine hours. Up to this point, hazardous waste disposal fees have been absorbed into the plantwide manufacturing overhead rate and allocated to all products as part of the manufacturing overhead process. Recently, the company has been experiencing significantly increased waste disposal fees for hazardous waste generated by certain products, and as a result, profit margins on all products have been negatively impacted. Company management wants to implement an activity based costing system so that managers know the cost of each product, including its hazardous waste disposal costs. Expected usage and costs for manufacturing overhead activities for the upcoming year are as follows: B (Click the icon to view the expected usage and costs.) During the year, Job 354 is started and completed. Usage for this job follows: (Click the icon to view the usage for Job 354.) Requirements Requirement 1. Calculate the cost of Job 354 using the traditional plantwide manufacturing overhead rate based on machine hours. Begin by calculating the predetermined manufacturing overhead rate. First, identify the formula used to compute the predetermined manufacturing overhead rate, then compute the rate. (Abbreviations used: MOH = manufacturing overhead) Predetermined manufacturing overhead rate Calculate the cost of Job 354. Job Cost Record Manufacturing JOB 354 Costs Total job cost Requirement 2. Calculate the cost of Job 354 using activity-based costing. Begin by calculating the allocation rate for each activity. First, determine the formula to compute the allocation rate in an activity-based costing system, then compute the rate for each activity. (Abbreviations used: est. = estimated, MH=machine hours) Activity cost 1 allocation rate Mach, maintenance / per MH / per order Eng. change orders Waste disposal / per kg 360 kg of direct materials @ $85 per kg 85 direct labour hours used @ $55 per labour hour 125 machine hours used 7 change orders 90 kg of hazardous waste generated