Perpetual Inventory Using LIFO The following units of a particular item were available for sale during the calendar year: The firm maintaina a perpetual inventory system, Determine the cost of goods sold for each stie sod the inventory batance after esch sale, assuming the last-in, first-out method, Prosent the dota in the form cilusurated in Exhibit 4 , Under UFO, if units are in inventory at two or more different costs, enter the units with the LowER unit cost first in the Inwentory Wout Cost column. ale, assuming the last-in, first-out method. with the LOWER unit cost first in the