Bonita Industries is contemplating the replacement of an old machine with a new one. The following information has been gathered:

	Old Machine	New Machine
Price	$240000	$450000
Accumulated Depreciation	72000	-0-
Remaining useful life	10 years	-0-
Useful life	-0-	10 years
Annual operating costs	$192000	$144000

If the old machine is replaced, it can be sold for $19000. Which of the following amounts is relevant to the replacement decision?

$48000

$240000

$72000

$168000