Final answer:
The rate of return on total assets for Watermelon, Inc. for 20X9 is 55.44%, calculated by dividing the net income of $181,000 by the average total assets of $326,500.
Step-by-step explanation:
The rate of return on total assets for Watermelon, Inc. for the year ending December 31, 20X9, is calculated by dividing the net income by the average total assets of 20X8 and 20X9. The formula used to calculate the rate of return on total assets (ROA) is ROA = Net Income / Average Total Assets.
To find the average total assets, you add the total assets at the beginning of the period to the total assets at the end of the period and then divide by two. For Watermelon, Inc., this is ($257,000 for 20X8 + $396,000 for 20X9) / 2 = $326,500 average total assets. The net income for 20X9 is $181,000. Therefore, ROA for 20X9 is $181,000 / $326,500 = 0.5544 or 55.44% when expressed as a percentage.