ROI, Residual Income Raddington Industries produces tool and die machinery for manufacturers. The company expanded vertically in 20x1 by acquiring one of its suppliers of alloy steel plates, Keimer Steel Company. To manage the two separate businesses, the operations of Keimer are reported separately as an investment center Raddington monitors its divisions on the basis of both unit contribution and return on average investment (ROI), with investment defined as average operating assets employed. Management bonuses are determined on ROI. All investments in operating assets are expected to earn a minimum return of 15 percent before income taxes. Keimer's cost of goods sold is considered to be entirely variable, while the division's administrative expenses are not dependent on volume. Selling expenses are a mixed cost with 30 percent attributed to sales volume, Keimer contemplated a capital acquisition with an estimated ROI of 17.60 percents however, division management decided against the investment because it believed that the investment would decrease Keimer's overall ROL. The 20x2 operating statement for Keimer follows. The division's operating assets employed were $12,729,600 at November 30, 20x2, a 4 percent increase over the 20x1 year-end balance Keimer Steel Company Operating Statement For the Year Ended November 30, 20x2 Sales revenue $25,086,000 Less expenses: Cost of goods sold $16,305,900 Administrative expenses 3,779,600 Selling expenses 2,752,000 22,837,500 Operating income before income taxes $2,248,500 Required: 1. Calculate the unit contribution for Keimer Steel Company of 1,169,300 units were produced and sold during the year ended November 30, 2012 Round your answer to the nearest cent. per unit $ 2. Calcutate the following performance measures for 20x2 for Keimer Steel Company: Pretax return on average investment in operating assets emploved (ROT. Round your percentage answer to two decimal places (for example, the decimal 10555 would be entered as "10.56" percent), b. Residual income calculated on the basis of average operating assets employed. 3. Explain why the management of Kelmer Steel Company would have been more likely to accept the contemplated capital acquisition if residual income rather than Rot were used as a performance measure 4. Kelmer Steel Company is a separate investment center within Raddington Industries. Identify several items that Keimer should control if it is to be evaluated fairly by either the Rof or residual income performance measures. (CMA adapted)