The Rockwell Corporation uses a periodic inventory system and has used the FIFO cost method since inception of the company in 1982. In 2021, the company decided to change to the average cost method. Data for 2021 are as follows: $ 303,600 Beginning inventory, FIFO (6,600 units @ $46.00) Purchases: 6,600 units @ $52.00 6,600 units @ $56.00 Cost of goods available for sale Sales for 2021 (11,200 units @ $86.00) $343, 200 369,600 712,800 $1,016,400 $ 963,200 Additional information: 1. The company's effective income tax rate is 25% for all years. 2. If the company had used the average cost method prior to 2021, ending inventory for 2020 would have been $277,200. 3. 8,600 units remained in inventory at the end of 2021. Required: 1. Prepare the journal entry at the beginning of 2021 to record the change in principle. 2. In the 2021-2019 comparative financial statements, what will be the amounts of cost of goods sold and inventory reported for 2021? Required 1 Required 2 Prepare the journal entry at the beginning of 2021 to record the change in principle. (If no entry is required for a particular event, select "No journal entry required" in the first account field.) View transaction list Journal entry worksheet