D28 and D29 cells amd D30 cell

I need the proper excel formula. i have one last attempt and everything i posted from chegg or look at is wrong.

A 10 Fixed expenses: 20 2. Complete the table to compute the net present value of the investment. Use Excel's PV function to compute the present value of the future cash flows Deduct the cost of the investment Net present value \begin{tabular}{lr} $ & 2,471,895.52 \\ $ & 2,205,000,00 \\ \hline$ & 266,895,52 \end{tabular} 3. Use Excel's RATE function to compute the project's internal rate of return 22.04% 4. Compute the project's payback period. 3.5 years 5. Compute the project's simple rate of return. 12.70%