Perpetual Inventory Using FIFO Beginning inventory, purchases, and sales for Item Zeta are as follows: Oct. 1 Inventory 55 units $25 7 Sale 45 units 15 Purchase 33 units $30 24 Sale 15 units Assuming a perpetual inventory system and using the first in, first-out (FFO) method, determine (a) the cost of goods sold on October 24 and (b) the inventory on October 31 a. Cost of goods sold on October 24 b. Inventory on October 31 Perpetual Inventory Using LIFO Beginning inventory, purchases, and sales for Item 88-HX are as follows: Inventory Jan. 1 8 106 units @ $15 85 units Sale 15 Purchase 118 units $17 22 Sale 99 units Assuming a perpetual inventory system and using the last in, first-out (FO) method, determine (a) the cost of goods sold on Jan, 27 and (b) the inventory on Jan 31 a. Cost of goods sold on Jan. 27 b. Inventory on Jan. 31 Perpetual Inventory Using Weighted Average Sale Beginning inventory, purchases, and sales for Wes12 are as follows: Oct. 1 Inventory 340 units at $11 13 170 units 22 Purchase 330 units at $12 29 Sale 300 units . Assuming a perpetual teventory system and using the weighted average method, determine the weighted average unit cost after the October 22 purchase. Round your answer to two decimal places per unit b. Assuming a perpetual inventory system and using the weighted average method, determine the cost of goods sold on October 29. Round your average unit cont" to two decimal places c. Assuming a perpetuol wventory system and sting the weighted average method, determine the inventory on October 31, Hound your average unit come to two decital places