You are deciding between two mutually exclusive investment opportunities. Both require the same initial investment of $ 10 million. Investment A will generate $ 2.4 million per year (starting at the end of the first year) in perpetuity. Investment B will generate $ 1.7 million at the end of the first year, and its revenues will grow at 3.3 % per year for every year after that. Use the incremental IRR rule to correctly choose between investments A and B when the cost of capital is 7.9 %. At what cost of capital would your decision change?

The incremental IRR is

You should take

At what cost of capital would your decision change?

the decision will change if the cost of capital is below/above the IRR

please answer asap and show work