Perpetual inventory using IFO The following units of a particular item were available for sale during the calendar year 3,000 units at $39 June 30 Jan. 1 Apr. 19 Inventory Sele 2,600 units Purchase 4,600 units at $43 Sale 5,000 units Purchase 1,800 units at $46 Sept. 2 Nov 15 The firm maintains a perpetual inventory system. Determine the cost of goods sold for each sale and the inventory balance after each sale, assuming the last-in, first-cut method. Present the date in the form illustrated in Exhibit 4. Under LFO, if units are in inventory at two or more different costs, enter the units with the LOWER unit cost first in the Inventory Unit Cost column