Need help with these problems done in Excel format

CHAPTER CASE BULLOCK GOLD MINING eth Bullock, the owner of Bullock Gold Mining, is evaluating a new gold mine in South Dakota. Dan Dority, the company's geologist, has just nished his analysis of the mine site. He has estimated that the mine would be productive for eight years, after which the gold would he completely mined. Dan has taken an estimate of the gold deposits to Alma Garrett, the company's nancial ofcer. Almahasbeenaskedbyethtoperfonnananalysis ofthe new mineandpresentherrecommendation onwhetherthe mmpany should open the newr mine. Almahasusedtheesmates providedhyDanto delerminethereyenues that couldheenpected mnmemme.hehasmprnjecmdmeexpenseofopenmgmemmemdmemnuoperang expenses. If the company opens the mine, it will cost $650 million today, and it will have a cash outow of $22 million nine years from today in costs associated with closing the mine and reclaiming thearea surrounding it.'lheeitpected cashows eachyear tromthenline are showninthe table onthis page. Bullock Mining has a 12 percent required return on all ofits gold mines. Year Cash Flow D -$65[lm 1 B'lltlt} 2 121 ,EIIIlt} 3 11521113311} 4 221 ,EIIItlt} 5 21D,Dtl],lltlt} 15 ld-ll T lcsnuncc B SEEKING 9 -72,ccc,cco LConstruct a spreadsheet to calculate the payback period, internal rate of return, modied internal rate of return, and net present Tralue of the proposed mine. 2.Based on your analysis, should the company open the mine? ELBonus question: Most spreadsheets do not have a built-in formula to calculate the payback period. Write a VBA script that calculates the payback period for a project