Please show on excel and explain the answers and how you got them.

PROBLEM 2 Better Health, Inc., is evaluating two investment projects, each of which requires an up-front expenditure of $1.5 million. The projects are expected to produce the following net cash inflows: Year 0 1 2 3 Project A Project B -$1,500,000 $1,500,000 $500,000 $2,000,000 $1,000,000 $1,000,000 $2,000,000 $600,000 a. What is each project's IRR? b. What is each project's NPV if the cost of capital is 10 percent? 5 percent? 15 percent