Questions are in the photo. Thank you !

Winder, Knotter, and Male is a small law rm that has 10 partners and 10 support people. The firm employs a job-order costing system to accumulate costs chargeable to each client, and it is organized into two departmentsthe Research and Documents Department and the Litigation Department. The firm uses predetermined overhead rates to charge the costs of these departments to its clients. At the beginning of the current year, the rm's management made the following estimates for the year: Department Research and Documents Litigation Research-hours 20,900 Direct lawyer-hours 9,450 16,900 Materials and supplies $ 19,800 $ 5,900 Direct lawyer cost $ 444,150 $845,000 Departmental overhead cost $731,500 $338,000 The predetermined overhead rate in the Research and Documents Department is based on research-hours, and the rate in the Litigation Department is based on direct lawyer cost. The costs charged to each client are made up of three elements: materials and supplies used, direct lawyer costs incurred, and an applied amount of overhead from each department in which work is performed on the case. Case 618-3 was initiated on February 10 and completed on June 30. During this period, the following costs and time were recorded on the case: Department Research and Documents Litigation Research-hours 27 Direct lawyer-hours 18 51 Materials and supplies $ 68 $ 39 Direct lawyer cost $ 810 $ 2,550 Required: 1. Compute the predetermined overhead rate used during the year in the Research and Documents Department. Compute the rate used in the Litigation Department. Research & Documents department Litigation department 2. Compute the total overhead cost applied to Case 618-3. 3. What is the total cost charged to Case 618-3? Show computations by department and in total for the case. 4. At the end of the year, the firm's records revealed the following actual cost and operating data for all cases handled during the year: Department Research and Documents Litigation Research-hours 23,800 Direct lawyer-hours 8,540 15,810 Materials and supplies $ 20,700 $ 6,800 Direct lawyer cost $ 427,000 $ 764,150 Departmental overhead cost $ 797,300 $316,200 Determine the amount of underapplied or overapplied overhead cost in each department for the year. Research & Documents department Litigation department