Great work!
But I have to say IRR can not be used to compare projects, and IRR is not used when there are additional capital outlays. You can use modified IRR, or simply discounted present value as long as you know your cost of capital.
But I have to say IRR can not be used to compare projects, and IRR is not used when there are additional capital outlays. You can use modified IRR, or simply discounted present value as long as you know your cost of capital.