Alpha Company uses the periodic inventory system for purchase & sales of merchandise. The value of inventory is based on periodic system. On January 1. 2016, beginning inventory consisted of 400 units of widgets costing $10 each. Alpha prepares monthly income statements. The following events occurred during the month of Jan: Date Activity Purchased on account 350 widgets for $11 Jan. 3 each. b. Jan. 5 Sold on account 500 widgets for $30 each. c Jan. 10 Purchased on account 650 widgets for $12 each d. Jan. 12 Returned 50 widgets received from Jan. 10 purchase. Jan. 13 Paid for the purchases made on Jan. 3. Jan. 21 Sold on account 550 widgets for $30 each. Received payment for the sale made on Jan Jan. 26 Paid for the purchases made on Jan. 10. Jan. 31 Received payment for the sale made on Jan. Using the Weighted Average method, determine the dollar values following for the month of January: (Enter only whole dollar values.) 1. Ending Inventory 2. Cost of Goods Available for Sale 3. Cost of Goods Sold