uses the perpetual inventory system. The following transactions took place during January 2019 Units 100 10 Unit Cost $1 2 Date Jan. 1 Opening Inventory 7 Purchase #1 9 Sale 11 21 Purchase #2 24 Sale #2 Required: Using the table below, calculate cost of goods sold for the January 9 and 24 sales, and ending inventory under the following inventory cost flow assumptions: 1. FIFO 2. LIFO 2. Weighted average. Purchased Unit Cost Sold Unt Cost Total $ Units Units Total S Balance in Inventory Unit Total Units 100 $1 $100 Cost .