Conduct a sensitivity analysis for each variable and range and compute the NPV for each. Use Spreadsheet 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.) Conduct a sensitivity analysis for each variable and range and compute the NPV for each. Use Spreadsheet 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.)