You are considering a new product. It will cost $966,000 to launch, have a 3-year life, and no salvage value. Depreciation is straight-line to zero. The required return is 20%, and the tax rate is 30%. Sales are projected at 80 units per year. Price per unit will be $40,000, variable cost per unit is $24,000 and fixed costs are $500,000 per year. Operating cash flows have been calculated for you as 642,600 per year.

Suppose that the sales units, price per unit, variable cost per unit, and fixed cost projections above are accurate to within 15%. What are the new variables for the best case and worst case scenarios?