Perpetual inventory using UFO Beginning inventory, purchases, and sales data for prepaid cell phones for December are as follows: Inventory Dec. 1 1,700 units at $40 a. Assuming that the perpetual inventory system is used, costing by the LIFO method, determine the cost of goods sold for each sale and th 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 first in the Cost of Goods Sold Unit Cost column and LOWER unit cost first in the Inventory Unit Cost column. b. Based upon the preceding data, would you expect the inventory to be higher or lower using the first-in, first-out method