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 7-for-1 stock split on January 1, 2017.
                                                               Price
                              Shares  (millions)         1/1/16            1/1/17          1/1/18
Douglas McDonnell        530                       $62                $66                $81  
Dynamics General         230                         34                  28                 42
International Rockwell    330                         63                  52                 68
What is the new divisor for the index?