An investment center of Walton Corporation shows an operating income of $7,336 on total operating assets of $56,000. Required Compute the return on investment. (Round your answer to 2 decimal places. (i.e., 0.2345 should be entered as 23.45 ).) Vernon Corporation has a desired rate of return of 9 percent. William Tobin is in charge of one of Vernon's three investment centers. His center controlled operating assets of $2,450,000 that were used to earn $269,000 of operating income. Required Compute Mr. Tobin's residual income