Crow Company uses the periodic inventory system. Data pertaining to the inventory on January 1 , the beginning of the fiscal year, purchases during the year, and the inventory count on December 31 are as follows: Required: a) Determine the cost of the inventory on December 31 by the weighted-average-cost method. (Round to two decimal places.) b) Determine the cost of the inventory on December 31 by the first-in, first-out method. c) Determine the cost of the inventory on December 31 by the last-in, first-out method