2. Determine the cost of the inventory on December 31 by the last-in, first-out method. If the inventory of a particular model comprises one entire purchase plus a portion of another purchase acquired at a different unit cost, use a separate line for each purchase. If units are in inventorv at two different costs, enter the OLDEST units first. 1. Determine the cost of the inventory on December 31 by the first-in, first-out method. If the inventory of a particular model comprises one entire purchase olus a portion of another purchase acquired at a different unit cost, use a separate line for each purchase, If units are in inventory at two different costs; enter the units 9URCHASED MOST fECENILY first. 2. Determine the cost of the inventory on December 31 by the lautin, first-out method. If the inventory af a particular medel comprises one entire purchase plus a portion of another purchase aceuired at a different unit cost, use a Deparate line for each purchase. If units are in inventory at two ditferent costs. enter the OLDEST units first Periodic Inventory by Three Methods Dymac Appliances uses the periodic inventory system. Details regarding the inventory of appliances at January 1 , purchases invoices during the next 12 months, and the inventory count at December 31 are summarized as follows: Required: 1. Determine the cost of the inventory on December 31 by the first-in, first-put method. If the inventory of a particular model comprises one entire purchase plus a portion of another purchase acquired at a different unit cost, use a separate line for each purchase. If units are in inveptory at two different costs, enter the units PURCHASED MOST RECENTLY first. 4. would be preferred for income tax purposes in periods of rising prices