Assignment 4 L.Use the following to answer the question(s) below: Shown below is the activity for one of the products of Random Creations: January 1 balance, 80 units @ $50 $4,000 Purchases January 18: 40 units@ S51 January 28: 40 units@ S52 Sales: January 12: 30 units January 22: 30 units January 31: 45 units Show your computation. 1) Required: Compute the January 31 ending inventory and cost of goods sold for January, assuming Random Creations uses LIFO and perpetual inventory system. 2) Required: Compute the January 31 ending inventory and cost of goods sold for January, assuming Random Creations uses LIFO and a periodic inventory system 3) Required: Compute the January 31 ending inventory and cost of goods sold for January, assuming Random Creations uses average cost and a periodic inventory system. 4) Required: Compute the January 31 ending inventory and cost of goods sold for January, assuming Random Creations uses average cost and a perpetual inventory system