Using the Weighted-Average Method, summarize the Total Cleaning Department Costs for May, and assign the cost to units transferred out, to the abnormal spoilage units, and to units in WIP/ED. Inspection point is at the 20% completion point of each process. Please show step by step calculations! Thanks!

Revisited (Weighted-Average method; Inspection at 20 % Completion) The Alston Company has two departments, the Cleaning department and the Milling department. The units completed in the Cleaning department are transferred to the Milling department, and the units completed in the Milling department are transferred to Finished Goods. DM: 100% added at the starting point of cleaning process Conversion: continuous and uniform Normal spoilage acceptance: 10% of good units DM: 100% added at the ending point of milling process Conversion: continuous and uniform Normal spoilage acceptance: 5% of good units At the 20 % completion point of each process on cost information for the Cleaning department in May is as follows. TC Physical units DM costs $2,160 Con. WIP/BG Started in May Transferred-Out as Good units Spoilage units Costs incurred in May 1,000 9,000 7,400 1,000 $1,200 $960 $20,400 $10,800 $9,600 Degree of completion WIP/BG WIP/ED Conversion 80% 25%