Nathan T Corporation is comparing two different options. Nathan T currently uses Option 1, with revenues of $48,000 per year, maintenance expenses of $3,700 per year, and operating expenses of $19,200 per year. Option 2 provides revenues of $44,000 per year, maintenance expenses of $3,700 per year, and operating expenses of $16,300 per year. Option 1 employs a piece of equipment which was upgraded 2 years ago at a cost of $13,000. If Option 2 is chosen, it will free up resources that will bring in an additional $3,000 of revenue. Complete the following table to show the change in income from choosing Option 2 versus Option 1 . Designate Sunk costs with an " S " otherwise select "NA". (Enter negative amounts using either a negative sign preceding the number e.g. -45 or parentheses e.g. (45).)