Problem 9-20A Return on Investment (ROI) Analysis LO9-1J The contribution format income statement for Huerra Company for last year is given below: Total Unit 998,000 $49.90 Sales 598,800 29.94 Variable expenses 399,200 19.96 Contribution margin Fixed expenses 315.200 15.76 Net operating income 84,000 4.20 Income taxes 40% 33,600 1.68 Net income 50,400 2.52 The company had average operating assets of $491,000 during the year. Required 1. Compute the company's return on investment (ROI) for the period using the ROI formula stated in terms of margin and turnover (Round your Turnover answer to 2 decimal places. Round your Margin and Roi percentage answers to 2 decimal places e., 0.1234 should be entered as 12.34).) Margin Turnover ROI