An existing robot can be kept 52.100 is spent now to upgrade for future service requirements Aternatively, the company can purchase a new robot to replace the old robot. The following estimates have been developed for both the defender and the challenger. The company's before-tex MARR IS 15% per year. Based on this information should the disting robot be replaced right now? Assume the robot will be needed for an indefinite period of time Defender Challenger Current MV 538.000 Purchase price 552000 Required upgrade 52100 Installation cost 55.400 Annual expenses 51.700 Annual expenses $1000 Remaining selle 5 years Useful 9 years MV at end of selfie - $1600 MV at end of useful life 56 500 Click the icon to view the interest and nuty table for discrete compounding when the MARR is 15% per year, The AXN value of the defender is (Round to the nearest dolar) The AW value of the challenger is sound to the nearest dollar) The existing robot be replaced right now should should not Enter your answer in each of the answer boxes