9 BR Company has a contribution margin of 40%. Sales are $312,500, net operating income is $25,000, and average operating assets are $200,000. What is the company's return on investment (ROI)? Multiple Choice 12.5% O 62.5% O O 8.0% O 64.0% Nasser Inc. reported the following results from last year's operations: 10 Sales Variable expenses Contribution margin Fixed expenses Net operating income Average operating assets $12,600,000 7,760,000 4,840,000 3,706,000 $ 1,134,000 $ 6,000,000 Last year's return on investment (ROI) was closest to: Multiple Choice 9.0% 47.6% 18.9% 80.7%