Perpetual Inventory Using LIFO Beginning inventory, purchases, and sales data for prepaid cell phones for May are as follows: Inventory May 1 2,500 units at $24 Purchases May 10 Sales 1.250 units at $26 May 12 May 20 1.125 units at $28 May 14 1.750 units 1.500 units 750 units May 31 a. Assuming that the perpetual inventory system is used, costing by the LIFO method, determine the cost of merchandise sold for each sale and the inventory balance after each sale, presenting the data in the form illustrated in Exhibit 4. Under LIFO. if units are in inventory at two different costs, enter the units wit the HIGHER unit cost first in the Cost of Merchandise Sold Unit Cost column and LOWER unit cost first in the Inventory Unit Cost column. Based upon the preceding data, would you expect the inventory to be higher or lower using the first-in, first- out method