please assist

Marsha Jones has bought a used Mercedes horse transporter for her Connecticut estate it cost $38,000. The object is to save on horse transporter rentals Marsha had been renting a transporter every other week for $203 per day plus $115 per mile. Most of the trips are 80 or 100 miles in total. Marsha usually gives Joe Laminitis, the diver, a \$35 tip. With the new transporter she will only have to pay for diesel fuel and maintenance, at about \$0,48 per mile. Insurance costs for Marsha's transporter are \$1,350 per year. The transporter will probably be worth $18,000 (in real terms) after eight years, when Marsha's horse Spike will be ready to retire Assume a nominal discount rate of 7% and a 3% forecasted inflation rate. Marsha's transporter is a personal outlay, not a business or financial investment. so taxes can be ignored. Calculate the NPV of the investment. (Do not round intermediate calculations. Round your answer to the nearest whole dollar omount.)