Determining missing items from computations Data for the North, South, East, and West divisions of Free Bird Company are as follows: Determine the missing items, identifying each by the letters (a) through (1). Round percents and investment turnover to one decimal place. Determine the residual income for each division, assuming that the minimum acceptable rate of return established by management is 10%. Which division is the most profitable in terms of (1) return on investment and (2) residual income