Sweet Company began operations on January 1, 2018, and uses the average-cost method of pricing inventory. Management is contemplating a change in inventory methods for 2021. The following information is available for the years 2018-2020. Net Income Computed Using Average-Cost Method FIFO Method LIFO Method 2018 $15.860 $19.060 $11,900 2019 18,080 21.030 14.120 2020 19.800 25.230 17,000 (a) Prepare the journal entry necessary to record a change from the average cost method to the FIFO method in 2021. (Credit account titles are automatically indented when amount is entered. Do not indent manually. If no entry is required, select "No Entry" for the account titles and enter O for the amounts) Account Titles and Explanation Inventory Debit Credit 11250 Retained Earnings 11250 (b) Determine net income to be reported for 2018, 2019, and 2020, after giving effect to the change in accounting principle.