Market Top Investors, Inc., is considering the purchase of a $385,000 computer with an economic life of five years. The computer will be fully depreciated over five years using the straight-line method, at which time it will be worth $30,000. The computer will replace two office employees whose combined annual salaries are $90,000. The machine also will immediately lower the firm’s required net working capital by $70,000. This amount of net working capital will need to be replaced once the machine is sold. The corporate tax rate is 22 percent. Is it worthwhile to buy the computer if the appropriate discount rate is 9 percent?