May 10 Perpetual Inventory Using LIFO Beginning inventory, purchases, and sales data for prepaid cell phones for May are as follows Inventory Purchases Sales May 1 1,500 units at $25 750 units at 127 May 12 1,050 units May 20 675 units at $29 May 14 units May 31 450 units - Amaning that the perpetual inventory system is used, costing by the uro method, determine the cost of merchandise sold for each sale and the invertory balance after each sale, presenting the data in the form ustrated in bit 4 Under uro, if units are in inventory at two different costs, enter the units with the HIGHER unit cost istin the cost of Merchandise Sold Unit Cost column and LOWER unit cost first the Inventory Unit Cost column