system will perform satisfactorily over the next 5 years, while the new system has 12 years useful life. The following estimates have been developed for both the defender and the challenger: Defender RM Challenger RM Current MV 40,500 Purchase price 61,000 Required upgrade 2,700 Installation cost 5,000 Annual expenses 1,900 Annual expenses 1,200 MV at end of useful life -1,800 MV at end of useful 8,900 life If the company's before tax MARR is 6% per year and assume the system will be needed for an indefinite period of time - Calculate the AW For defender and using the stright line method calculate the Comulative depreciation amount in year 2 and year 8. system will perform satisfactorily over the next 5 years, while the new system has 12 years useful life. The following estimates have been developed for both the defender and the challenger: Defender RM Challenger RM Current MV 40,500 Purchase price 61,000 Required upgrade 2,700 Installation cost 5,000 Annual expenses 1,900 Annual expenses 1,200 MV at end of useful life -1,800 MV at end of useful 8,900 life If the company's before tax MARR is 6% per year and assume the system will be needed for an indefinite period of time - Calculate the AW For defender and using the stright line method calculate the Comulative depreciation amount in year 2 and year 8