EE 7-3 p. 328PE 7-3A Perpetual inventory using LIFO OBJ. 3 Beginning inventory, purchases, and sales for Item Zebra 9x are as follows: April 1 420 units at $8 Inventory Sale 10 300 units 18 Purchase 280 units at $9 27 Sale 250 units Assuming a perpetual inventory system and using the last-in, first-out (LIF0) method, deter- mine (a) the cost of merchandise sold on April 27 and (b) the inventory on April 30. EE 7-5 p.333PE 7-5A Periodic inventory using FIFO, LIFO, and weighted average cost methods boThe units of an item available for sale during the year were as follows: OBJ. 4 Jan. 1 Inventory 12 units at $5,400 $ 64,800 18 units at $6,000 108,000 Aug. 7 Dec. 11 Purchase Purchase 15 units at $6,480 97,200 $270,000 Available for sale 45 units are 14 units of the item in the physical inventory at December 31. The periodic inventory system is used. Determine the inventory cost using (a) the first-in, first-out (FIFO) method; (b) the last-in, first-out (LIFO) method; and (c) the weighted average cost method. There