3. You are the production manager in a company that makes coated aluminum door stops. The coating for the door stops comes in barrels. The accounting department is considering different inventory methods, and you want to know how that influences your costs for the month of September. To get a better picture of the proposed methods, evaluate raw materials cost to your department and valuation of the inventory using the FIFO, LIFO, and weighted average methods. A schedule of purchases and use by the production department is found below for barrels of coating. Aug. 31 on hand in inventory are 18 barrels @ $16.00 each Sept. 3 - purchased 12 barrels @ $15.00 each Sept. 12 purchased 6 barrels @ $21.00 each Sept. 13 withdrew 13 barrels from inventory for use in production Sept. 16 - purchased 12 barrels @ $18.00 each Sept. 21 purchased 10 barrels @ $20.00 each Sept. 25 - withdrew 11 barrels for use in production Sept. 28 purchased 6 barrels @ $19.00 each For this usage, please find: a) Cost of raw materials issued to production on September 13th b) Cost of raw materials issued to production on September 25th c) Value of the inventory remaining in storage on September 31st