Wong's Trading Cards, Inc, had the following purchases in the month of April. Wong's Trading Card Inventory Purchases On April 30, Wong sells 4,000 units to customers for $20 per unit. Note: For Question 2 there is only 4,000 units sold during April. Do not include sale information from Question 1. What is Wong's Cost of Goods Sold (COGS) using the FIFO method of inventory valuation? What is Wong's COGS using the LIFO method of inventory valuation? Wong's Cost per Unit using the Weighted Average method of inventory valuation is $12.31 (round to two decimal places). What is Wong's COGS using the Weighted Average method of inventory valuation? What is Wong's Ending Inventory after the sale using the FIFO method of inventory valuation? What is Wong's Ending Inventory after the sale using the LIFO method of inventory valuation? What is Wong's Ending Inventory after the sale using the Weighted Average method of inventory valuation