A machine purchased three years ago for $313,000 has a current book value using straight-line depreciation of $195,000; its operating expenses are $36,000 per year. A replacement machine would cost $235,000, have a useful life of ten years, and would require $9,000 per year in operating expenses. It has an expected salvage value of $70,000 after ten years. The current disposal value of the old machine is $79,000; if it is kept 10 more years, its residual value would be $15,000. Required Calculate the total costs in keeping the old machine and purchase a new machine. Should the old machine be replaced? Keep Old Machine Purchase New Machine Total costs Should the old machine be replaced?