Please help explain how to solve this problem, thank you so much! (Please provide all steps)

Alvis Construction Supply Company has a department that manufactures wood trusses (wood frames used in the construction industry). The following information is for the production of these trusses for the month of February: Required Using the weighted-average method, calculate the following: 1-a. Costs per equivalent unit. (Round your answers to 4 decimal pleces.) 1-b. Cost of goods completed and transferred out. (Round "Cost per EU" to 4 decimal pleces. Round final answer to nearest whole dollers.) 1-c. Costs remaining in the Work-in-Process Inventory account. (Round "Cost per EU" to 4 declmal pleces. Do not round other Intermedlate caleulations. Round final answer to nearest whole dollars.) 2 Assume that you are the company's controller. The production department's February equivalent unit cost is higher than expected. If the manager of the first department asks you to do him a favor by increasing the ending inventory completion percentage from 20 to 40% to lower the unit costs, how much would unit cost be affected by this request? (Round your answer to 4 declmal pleces.)