We are evaluating a project that costs $836,000, has a life of thirteen years, and has no salvage value. Assume that depreciation is straight-line to zero over the life of the project. Sales are projected at 143,000 units per year. Price per unit is $41, variable cost per unit is $29, and fixed costs are $847,704 per year. The tax rate is 22 percent, and we require a return of 16 percent on this project. The projections given for price, quantity, variable costs, and fixed costs are all accurate to within +/13 percent. a. Calculate the best-case NPV. Best case b. Calculate the worst-case NPV