Periodic Inventory by Three Methods The beginning inventory at Midnight Supplies and data on purchases and sales for a three-month period ending March 31 , are as follows: Required: 1. Determine the inventory on March 31 and the cost of merchandise sold for the three-month period, using the first-in, first-out method and the periodic inventory nsstem. 2. Determine the inventory on March 32 and the cost of merchandise sold for the thees-month period, using the last-in, first-out method and the periodic inventory syster. 1. Determine the inventory on March 31 and the cost of merchandise sold for the three-month period, using the first-in, first-out method and the periodic inventory system. 2. Determine the inventory on March 31 and the cost of merchandise sold for the three-month period, using the last-in, first-out method and the periodic inventory system. 3. Determine the inventory on March 31 and the cost of merchandise sold for the three-month period, using the weighted average cost method and the periodic inventery system. Round the weighted average unit cost to the nearest cent and finat answers to the nearest dollar