one year ago, your company purchased a machine used in manufacturing for $120,000. You have learned that a new machine is available that offers many advantages and you can purchase it for $170,000 today. it will be depreciated on a straight line basis over 10 years and has no salvage value. you expect that the new machine will produce a gross margin (revenues minus operating expenses other than depreciation) of $55,000 per year for the next 10 years the current machine is expected to produce a gross margin of $25,000 per year. the current machine is depreciated on a straight line basis over a useful life of 11 years, and has no salvage value, so depreciation expense for the current machine is $10,909 per year. the market value today of the current machine is $55,000. your company's tax rate is 40% and the opportunity cost of capital for this type of equipment is 11%. should your company replace it's year old machine?