Looking for help to understand how to derive the answer for parts 2 and 4. I would like to know how to calculate these values so that I may learn and replicated the process. Thank you

Gitano Products operates a job-order costing system and applies overhead cost to jobs on the basis of direct materials used in production (not on the basis of raw materials purchased). Its predetermined overhead rate was based on a cost formula that estimated $111,800 of manufacturing overhead for an estimated allocation base of $86,000 direct material dollars to be used in production. The company has provided the following data for the just completed year: $ 136,000 $ 82,000 Purchase of raw materials Direct labor cost Manufacturing overhead costs: Indirect labor Property taxes Depreciation of equipment Maintenance Insurance Rent, building $ $ $ $ $ $ 99,600 8,800 17,000 14,000 10,700 37,000 Raw Materials Work in Process Finished Goods Beginning Ending $ 22,000 $ 17,000 $ 48,000 $ 36,000 $ 69,000 $ 58,000 Required: 1. Compute the predetermined overhead rate for the year. 2. Compute the amount of underapplied or overapplied overhead for the year. 3. Prepare a schedule of cost of goods manufactured for the year. Assume all raw materials are used in production as direct materials. 4. Compute the unadjusted cost of goods sold for the year. Do not include any underapplied or overapplied overhead in your answer. 5. Assume that the $36,000 ending balance in Work in Process includes $8,200 of direct materials. Given this assumption, supply the information missing below