25. If Stevenson Corporation had $550,000 in average operating assets, sales of $660,000, net operating income amounting to $99,000, and year end operating assets of $600,000its rate of return on investment is: a. 18.0% b. 20.8%. . 16,5% d. 15.0%. 26. If Stevenson Corporation had $550,000 in average operating assets, sales of $660,000, net operating income amounting to $99,000, and a desired minimum rate of return of 15%, its residual income is: b. $14,850 c. $16,500. d. $17,820