The following three defense stocks are to be combined into a stock Index in January 2016 (perhaps a portfolio manager believes these stocks are an appropriate benchmark for his or her performance): Suppose that Douglas McDonnell shareholders approve a 3-for-1 stock spilt on January 1, 2017 Price Shares (millions) 1/1/16 1/1/17 1/1/18 Douglas McDonnell Dynamics General International Rockwell 290 77 66 80 205 450 $103 48 $109 44 $123 58 a. What is the new divisor for the Index? (Do not round intermediate calculations. Round your answer to 3 decimal places.) 75 New disor b. Calculate the rate of return on the index for the year ending December 31, 2017, Douglas McDonnell's shore price on January 1 2018. / $38.40 per share. (Do not round Intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) Refretum