ABC Company is a division of XYZ Company. Last year the division had total sales of $26,110,000, net operating income of $1,801,590, and average operating assets of $7,000,000. The company's minimum required rate of return is 18%. Required: What is the division's margin? What is the division's turnover? What is the division's return on investment (ROI)? What is the residual income? What can management do to increase ROI