The company in the service sector will be Xcel Energy (XEL). Find the recent set of financial statements (Income Statement, Balance Sheet, and Cash flow Statement) from SEC.gov containing recent years 2020, 2021, and 2022. Calculate the NPV, IRR, PI, payback period, WACC, MCC, and average rate of return. Also, calculate CAPM. Develop a graph showing the MCC. Draw a decision tree. Show an incremental cash flow.