which of the following statements best describes the difference between the irr method and the mirr method? the irr method assumes that cash flows are reinvested at a rate of return equal to the irr. the mirr method assumes that cash flows are reinvested at a rate of return equal to the cost of capital. the irr method uses the present value of the initial investment to calculate the irr. the mirr method uses the terminal value of the initial investment to calculate the mirr. the irr method uses only cash inflows to calculate the irr. the mirr method uses both cash inflows and cash outflows to calculate the mirr.