Blue Inc. is a retailer using a perpetual inventory system. All sales returns from customers result in the goods being returned to inventory. (Assume that the inventory is not damaged.) Assume that there are no credit transactions; all amounts are settled in cash. You are provided with the following information for Blue Inc. for the month of January. Unit Cost or Date Description Quantity Selling Price Dec. 31 Beginning inventory 160 $21 Jan. 2 Purchase 100 23 Jan. 6 Sale 180 41 Jan. 9 Sale return 10 41 Jan. 9 Purchase 75 25 Jan. 10 Purchase return 15 25 Jan. 10 Sale 50 47 Jan. 23 Purchase 100 26 Jan. 30 Sale 120 51