dune company is replacing an old machine with a new, more efficient machine. dune purchased the old machine for $600,000 and there is $180,000 of accumulated depreciation recorded on the machine. it has a 10-year remaining useful life and it costs $480,000 per year to operate. the new machine would also have a 10-year useful life, it would cost $1,200,000 and its annual operating costs would be $361,200. if the old machine is replaced, it can be sold for $48,000. what is the net advantage (disadvantage) of replacing the old machine?