4. Process Costing T-Rex Company assemble a VR-device. Each unit passes through the assembly department and the finishing department. T-Rex uses a process costing system for each unit following the weighted average costing method. In the assembly department, the direct materials are added at the beginning of the assembly process and conversion costs are added evenly during the process. When the assembly department finished, the unit is transferred to the finishing department. T-Rex Company has the following budget for the assembly department. Conversion Physical Units Materials Conversion Completion Rate WIP Beginning of the Week 10 $ 1,000 $ 2,000 50% Units Started WIP End of the Week 60% Total Cost added during the Week $ 4,700 $ 5,800 The finishing department of T-Rex Company continues to process the units. Finishing costs are added evenly throughout the finishing process. When the finishing process is complete, the units are transferred to the testing department. Following table shows the flow of works in process in the finishing department for the week. WIP Finishing Physical Units Transferred-In Finishing Completion Rate WIP Beginning of the Week 5 $ 1,900 $ 2,100 50% Units Transferred-In WIP End of the Week 60% Total cost added during the Week $ ? $ 5,700 1) For materials and conversion costs, compute the equivalent units of production for the week for the assembly department. 2) For materials and conversion costs, calculate cost per equivalent units for the week for the assembly department. Present the cost per equivalent unit of production for materials and conversion separately. 3) For the assembly department process, what are the total costs for units completed and transferred out and total costs for units remaining in the ending works in process? 4) Compute the units transferred-in and total cost transferred-in during the week for the finishing department. 5) Compute the equivalent units of finishing and WIP transferred-in for the week for the finishing department. 6) Calculate cost per equivalent units for the week for the finishing department. Present the cost per equivalent unit of finishing and WIP transferred-in separately. 7) What are the total costs for units completed and transferred out and total costs for units remaining in the ending works in process for the finishing department