Perpetual Inventory Using LFO Beginning inventory, purchases, and sales data for prepaid cell phenes for May are as follows: a. Assuming that the perpetual inventory systen is wed, costing by the 4ro mothod, determine the cost of merchandise sold for each sale and the anventory balance after each sale, presenting the data in the form illustrated in Lahibit 4 . Under Lfo, if units are in imventory at two different conts, enter the units weh the HiGhER unit cost first in the Cost of Merchandise Sold Unit Cost column and towER unit cost first in the inventory Unit Cost column