Kellog's is thinking about introducing a new cereal brand. Marketing and development of the brand will cost $12\mathrm{.}5$ million dollars today. In year $1$&$2,$ the new cereal will generate $5$ million dollars in cash. In years $3$&$4,$ the new cereal will generate $6$ million dollars in cash. Kellog's reinvestment rate is $7\%.$ What is the MIRR of this project?