Benson Company calculated its return on investment as 10 percent. Sales are now $330,000, and the amount of total operating assets is $350,000 Required expenses are reduced by $29,400 and sales remain unchanged, what return on investment will result? (Round your answer to 2 decimal places. (Le...2345 should be entered as 23.45).) b. I both sales and expenses cannot be changed, what change in the amount of operating assets is required to achieve the same result? (Do not round Intermediate calculations. Round your answer to the nearest whole dollar amount.) Return on investment b. Operating assets must Solomon Corporation has a desired rate of return of 6 percent. William Tobin is in charge of one of Solomon's three Investment centers. His center controlled operating assets of $2,450,000 that were used to earn $261,000 of operating Income. Required Compute Mr. Tobin's residual income