Perpetual Inventory Using LIFO Beginning inventory, purchases, and sales data for prepaid cell phones for May are as follows: Inventory Purchases Sales May 1 2,800 units at $20 May 10 1,400 units at $22 May 12 1,960 units 20 1,260 units at $24 14 1,680 units 31 840 units 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 with 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. Schedule of Cost of Merchandise Sold LIFO Method Prepaid Cell Phones Cost of Cost of Merchandise Merchandise Sold Sold Unit Cost Total Cost Purchases Purchases Quantity Unit Cost Total Cost Sold Inventory Inventory Inventory Quantity Unit Cost Total Cost Quantity Purchased Date May 1 May 31 May 31 Balances b. Based upon the preceding data, would you expect the inventory to be higher or lower using the first-in, first-out method