Martinez 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 20182020. Net Income Computed Using Average-Cost Method FIFO Method LIFO Method 2018 $15,980 $19,010 $11,880 2019 17,940 20,930 13,920 2020 19,850 25,140 17,140. (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 0 for the amounts.)

Account Titles and Explanation	Debit	Credit
Enter an account title	Enter a debit amount	Enter a credit amount
Enter an account title	Enter a debit amount	Enter a credit amount

(b) Determine net income to be reported for 2018, 2019, and 2020, after giving effect to the change in accounting principle.

		Net Income
2018		$Enter a dollar amount
2019		$Enter a dollar amount
2020		$Enter a dollar amount

(c) Assume Martinez Company used the LIFO method instead of the average cost method during the years 20182020. In 2021, Martinez changed to the FIFO method. Prepare the journal entry necessary to record the change in principle. (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 0 for the amounts.)