please I need solution, solve it well ,this is the third time am posting this question and also highlight the answers.

You are considering a new product launch. The project will cost $2,375,000, have a four- year life, and have no salvage value; depreciation is straight-line to zero. Sales are projected at 340 units per year; price per unit will be $19,900, variable cost per unit will be $1 is 11 percent, and the relevant tax rate is 22 percent 4150, and fixed costs will be $730,000 per year. The required return on the project a. Based on your experience, you think the unit sales, variable cost, and fixed cost projections given here are probably accurate to within +10 percent. What are the upper and lower bounds for these projections? What is the base-case NPV? What are the best-case and worst-case scenarios? (A negative answer should be indicated by a minus sign. Do not round intermediate calculations. Round your NPV answers to 2 decimal places, e.g., 32.16. Round your other answers to the nearest whole ces number, e.g. 32.)