I found one previous answer but that was incorrect. please help me solve this, thank you.

We are evaluating a project that costs $902.000, has an eight-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 90,000 units per year. Price per unit is $68, variable cost per unit is $52, and fixed costs are $784,000 per year. The tax rate is 35%, and we require a 10% return on this project. Suppose the projections given for price, quantity, variable costs, and fixed costs are all accurate to within +10%. Calculate the best-case and worst-case NPV figures. (Omit $ sign in your response. Negative answers should be indicated by a minus sign. Do not round intermediate calculations. Round the final answers to 2 decimal places.) Best-case NPV Worst-case NPV