CP 6‐1 Laplante Inc. uses the perpetual inventory system. The following transactions took place during January 2019 Date Units Unit Cost Jan. 1 Opening Inventory 100 $1 7 Purchase #1 10 2 9 Sale #1 80 21 Purchase #2 20 3 24 Sale #2 40 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 Sold Balance in Inventory Date Units Unit Cost Total $ Units Unit Cost Total $ Units Unit Cost Total $ Jan. 1 100 $1 $100 7 9 21 24