Perpetual inventory using UFO Beginning inventory, purchases, and sales for ftem 88 - HX are as follows: Astuming a perpetual inventory system and viling the last-in, fint-out (LFO) method, determine (a) the cost of goods soid an July 27 and (b) the inventory on July 31. a. Cost of poods sold on July 27 b. Inventory on July 31 x x