Penodic eventory by Three Methods The units of an item available for sale during the year were as flows: Jan. 1 Inventory Feb. 17 Purchase Jul. 21 Purchase Nov. 23 Purchase There are 19 units of the item in the physical inventory at December 31. The periodic inventory system as used. Round everage unit cost to two decimals and answers to the nearest whole dollar, if required a. Determine the inventory cost by the first-in, first-out method Determine the invertory cost by the lae-in, first-out method Determine the inventory coat by the weghe average cost method Check My Workmans Check My Work Live B Previous