need it as soon as possible please

We are evaluating a project that costs $890,000, has a life of twelve years, and has no salvage value. Assume that depreciation is straight-line to zero over the life of the project. Sales are projected at 156,000 units per year. Price per unit is $37, variable cost per unit is $24, and fixed costs are $899,790 per year. The tax rate is 22 percent, and we require a return of 17 percent on this project. The projections given for price, quantity, variable costs, and fixed costs are all accurate to within +114 percent. a. Calculate the best-case NPV. Best case b. Calculate the worst-case NPV