The Campbell Company is considering adding a robotic paint sprayer to its production line. The sprayer?s base price is $1,080,000, and it would cost another $22,500 to install it. The machine falls into the MACRS 3-year class, and it would be sold after 3 years for $605,000. The MACRS rates for the first three years are 0.3333, 0.4445, and 0.1481. The machine would require an increase in net working capital (inventory) of $15,500. The sprayer would not change revenues, but it is expected to save the firm $380,000 per year in before-tax operating costs, mainly labor. Campbell?s marginal tax rate is 35%.

What is the NPV if the project cost of capital is 12%. "Text book answer is $78,790. How do I find that answer with excel. My answer keep coming up as ($709,689.83)"