A city has learned that by buying larger garbage trucks, it could reduce labor costs for garbage removal. Note: All the dollar amounts below are in this years dollars (constant dollars). Cost of the trucks today is $400,000. Annual savings in this years constant dollars is $90,000. Trucks will last for 4 years and then will be sold for $100,000. The city can borrow money at a 7% discount rate to purchase the trucks. Inflation (for the next 4 years) is expected to average 3%. Assuming the costs and benefits are incurred at the end of the year, should the city buy the trucks?