What is the IRR of the investment of:

The 3.2yr payback for period for the investment -500,000 125,000 150,000 175,000 200,000 250,000

When the NPV of the investment in the first problem if the discount rate is 8% = 200,414.

Question:

What is the IRR of the investment?

And what is the Modified IRR (MIRR) for the project with a reinvestment rate equal to the WACC of 8%