Harjot is considering a new business venture operating a transportation business. He can buy a van for $$80,000$ including taxes. He expects it will generate annual revenue of $$35,000$ for the next $5$ years. The annual operating costs are estimated to be $$15,000.$ The salvage value is estimated to be $$7,000$ at the end of $5$ years. He wants to earn at least $18\frac{\%}{y}$ear. Assume expenses occur at the beginning of each year and revenue at the end of each year.

Calculate the NPV$.$ Should he buy the van? Explain why or why not.