Coronado Industries is contemplating the replacement of an old machine with a new one. The following information has been gathered: Old Machine $260000 New Machine $520000 78000 -0- Price Accumulated Depreciation Remaining useful life Useful life Annual operating costs -O 10 years -0 10 years $208000 $156000 If the old machine is replaced, it can be sold for $20800. Which of the following amounts is a sunk cost? $156000 $520000 $182000 $200000