periodic inventory by three methods; cost of goods sold the units of an item available for sale during the year were as follows: date line item description units and cost jan. 1 inventory 180 units at $108 mar. 10 purchase 224 units at $110 aug. 30 purchase 200 units at $116 dec. 12 purchase 196 units at $120 there are 208 units of the item in the physical inventory at december 31. the periodic inventory system is used. determine the ending inventory cost and the cost of goods sold by three methods. in your calculations round average unit cost to the nearest cent, and round all other calculations and your final answers to the nearest dollar. blank blank cost of inventory and cost of goods sold inventory method ending inventory cost of goods sold first-in, first-out (fifo) $first-in, first-out (fifo) $first-in, first-out (fifo) last-in, first-out (lifo) last-in, first-out (lifo) last-in, first-out (lifo) weighted average cost weighted average cost weighted average cost