Waterway Industries is contemplating the replacement of an old machine with a new one. The following information has been gathered Old Machine $450000 New Machine $900000 Price 135000 -0 Accumulated Depreciation Remaining useful 10 years 0. life Useful life -0- 10 years Annual operating costs $360000 $270000 If the old machine is replaced it can be sold for $36000 Which of the following amounts is a sunk cost? $315000 5900000 $360000 $270000