Bramble Corp. is contemplating the replacement of an old machine with a new one. The following information has been gathered: Old Machine $280000 New Machine $560000 84000 Price Accumulated Depreciation Remaining useful life Useful life Annual operating costs 10 years 10 years $224000 $168000 If the old machine is replaced, it can be sold for $22400. Which of the following amounts is a sunk cost? $224000 $196000 $560000 $168000