Hemming co. reported the following current-year purchases and sales for its only prodjet. Required: Hemming uses a periodic inventory system. (a) Determine the costs assigned to ending inventory and to cost of goods sold 4 sing fifo (b) Determine the costs assigned to ending inventory and to cost of goods sold using LFFO. (c) Compute the gross margin for each method. Complete this question by entering your answers in the tabs below. Determine the costs assigned to ending inyentory and to cost of goods sold using Fifo