PowerOn Technology has 12 computers that have become obsolete and that are carried in its inventory at a cost of $13,200. If an upgrade is made to the computers at a cost of $7,500, they could be sold for $15,300. The other option is the computers could be sold as is for $9,000. What is the net advantage or disadvantage of upgrading the computers?

Group of answer choices

$1,200 disadvantage

$6,300 advantage

$3,000 advantage

$5,400 disadvantage