(d) We will now perform a sensitivity analysis by recalculating the NIV by changing the value of one variable at a time. Consider the following base, low and high values for each of the input variables listed below. Low value $6.00 50,000 $1.50 Base value Unit price $6.50 Annual unit sales 52,000 Variable cost per unit $1.75 Expected salvage value $45,000 Tax rate 35 percent 30 percent Required rate of return 11 percent 10 percent $30,000 High value $7.00 55,000 $2.00 $60,000 40 percent 13 percent Variable Fill out the table below by recalculating the NPV under each individual change. Unit price Annual unit sales. Variable cost per unit Expected salvage value Tax rate Required rate of return Project NPV With low estimate With high estimate Range of estimate (e) Which of the variables has the most effect on NPV? How do you explain it?