3. You currently own a piece of machinery with the following characteristics. Operating cost is $1,000 this year increasing by 15% per year compounded annually Acquisition cost three years ago was $100,000 Salvage value is currently $50,000. The salvage value at the end of each year is 70% of the previous year's salvage value The firm's investment rate is 8% What is the remaining ESL and equivalent uniform annual cost of the machinery? What is the noortunity cost of keeping the machine from the end of year 8 to the end of year 9