We are evaluating a project that costs $690,000, has a five year life, and no salvage value. Assume that straightline to zero over the life of the project. sales are projected at 71,000 units per year. price per unit is $75, variable cost per unit is and fixed costs are $790,000 per year. The tax rate is 35%, and we require a return of 15% on this project Calculate the best case and wore case npv figures.