We are evaluating a project that costs $1,446,000, has a six-year life, and has no salvage value. Assume that depreciation is straight-line to zero over the life of the project. Sales are projected at 88,600 units per year. Price per unit is $35.05, variable cost per unit is $21.30, and fixed costs are $766,000 per year. The tax rate is 30 percent, and we require a return of 11 percent on this project.

Suppose the projections given for price, quantity, variable costs, and fixed costs are all accurate to within ±10 percent. Calculate the best-case and worst-case NPV figures.