The following three defense stocks are to be combined into a stock index in January 2019 (perhaps a portfolio manager believes these stocks are an appropriate benchmark for his or her performance). Suppose that Douglas McDonnell shareholders approve a 2-for-1 stock split on January 1, 2020. Douglas McDonnell Dynamics General. International Rockwell Price Shares (millions) 1/1/19 1/1/20 180 325 370 $ 60 68 97 $ 64 64 86 1/1/21 $ 77 78 100 a. What is the new divisor for the index? (Do not round intermediate calculations. Round your answer to 3 decimal places.) Answer is complete but not entirely correct. New divisor 2.322 ( b. Calculate the rate of return on the index for the year ending December 31, 2020, if Douglas McDonnell's share price on January 1, 2021, is $23.42 per share. (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) Rate of return %