Exercise 6-3 a. Specific identification Ending inventory-180 units from January 30, units from January, and Ending Cost of Inventory Goods Sold Specific ldentification (180 x $4.50)+ Total Good. Awallablel _ $ Ending Inventory.. d.LIF0-Perpetual DateI Goods Purchased - Cost of Goods Sold Inventory Balance 140 $6.00840.00 1/10 1/20 1/25 1/30 Quick Study 6-8 Ending Inventory Goods Sold Cost of LIFO--Periodic LIFO Quick Study 6-9 Ending Cost of Weighted Average-PeriodicInventory Goods Sold Weighted Average (s cost per unit) Quick Study 6-14 Ending Cost of Inventory Goods Sold FIFO-Periodic FIFO