I need help with this scenario of a capital budgeting asset decision. A company wants to determine which project it should invest in. Project A has an initial investment cost of $400,000. This project is expected to produce $90,000 in net cash flows each year for 7 years. Project B has an initial investment cost of $350,000 with an expected net cash flow of $75,000 per year for 5 years. Both investments have a 12% cost of capital.

a. What is each project's NPV?

b. What is each project's IRR?

c. What is the payback period for each project?

I need to see the Excel calculations, please. Thank you.