Conduct a sensitivity analysis for each variable and range and compute the NPV for each. UseSpreadsheet 10.1and accompanying data as a starting point for the analysis.(Do not round intermediate calculations. Negative amounts should be indicated by a minus sign. Enter your answers in thousands rounded to the nearest whole dollar.)

I have worked out everything up until the pessimistic and optimistic values I do not understand what am I suppose to do to get the correct numbers. below is a snapshot of the question and a snap shot of what I have worked out so far

Blooper's analysts have come up with the following revised estimates for its magnoosium mine: Range Pessimistic Optimistic Initial investment + 48% 28% Revenues 25% + 25% Variable costs + 28% 25% Fixed cost + 28% 38% Working capital + 48% 45% Conduct a sensitivity analysis for each variable and range and compute the NPV for each. Use preadsheet 10.1 and accompanying data as a starting point for the analysis. (Do not round intermediate calculations. Negative amounts should be indicated by a minus sign. Enter your answers in thousands rounded to the nearest whole dollar.) Project NPV Pessimistic Expected Optimistic Initial investment Revenues Variable costs Fixed costs Working capital Revenues Variable ex Fixed expenses 15,000 6000 4000 year 0 1 2 3 4 5 6 Initial investment (5 thousands) -10,000 terminal value 1300 revenue @ 5% inflation rate 15000 1570 16538 17364 18233 variable expenses -6000 -6300 -6615 -6946 7293 fixed cost -4,000 4,200 -4,410 -4,631 -4,862 depreciation -2,000 -2,000 -2,000 -2,000 -2,000 pretax profit ' 3,000' 3,250' 3,513 3,788 4,078 tax @ 35% -1,050 -1,138 -1,229 -1,326 -1,427 after profit tax 1,950 2,113 2,283 2,462 2,650 operating cash flow 3,950 4,113 4,283 4,462 4,650 working capital cash flow -1,500 -2,575 -204 -214 -225 1,679 3,039 cash flow -11,500 1,375 3,909 4,069 4,238 6,329 4,339 present value @ 12% -11,500 1227.679 3116.032 2896.367 2693.101 3591.217 2198.154 N PV 4,222.549 NPV essimistic optimitic initial investment +40% -20o .l revenues -25 +25% variable cost +20% -25% fixed cost +20% -30% workingcapital +40% -45%