I need to know the EXCEL FORMULA

Calculating NPV and IRR Excel HOME INSERT PAGE LAYOUT FORMULAS DATA REVIEW VIEW Sign In Arial B T UA Alignment Number Conditiona Formas Cells Editing Paste Clipboard D15 FormattingTable Styles- Styles 4 Annual cash flows # of years Costs Required Return Required Return 15,400 9 67,000 8% 20% 9 10 12 Complete the following analysis. Do not hard code values in your calculations. 13 15 16 17 18 You must use the built-in Excel function to answer this question NPV at 8 percent NPV at 20 percent IRR 21 23