Help calculate NPV, IRR, and payback please. I don't get it. Including the process for calculating on a financial calculator would be great.

Musky SnoRockets has developed a new electric hover snowboard. After detailed study you have calculated the following cash flows for the project investment The initial investment is $1,000,000 The project is expected to last four years after which you plan to sell the company for $1,500,000 Your minimum expected rate of return is 20.00% After Tax Cash Flow Terminal Value Year Investment Total Cum Cash Flow CM, (1,000,000) (1,000,000) 0 00 909 100,000 450,000 500,000 600,000 1,500,000 2,100,000 2,ISUU 100,000 450,000 u500 500,000 1 4 NPV IRR Payback L 31 2.40 After you did all vour calculations, your realized vou forgot to account for the taxes you will pa