iting DISCUSSION UNIT 2: Job Order Costing Part 1 . Your friend asks your help in understanding the major steps in the flow of costs in a job order cost system. Identify the steps and relate them to a product that might use job order costing. Include a description of the purpose of a job cost sheet. Part 2 . After you explain the steps, your friend admits that they don't understand what a predetermined overhead rate is or how it is calculated. Explain it to them, including examples of different possible operating activities (denominators) that might be used