Nathan T Corporation is comparing two different options. Nathan T currently uses Option 1, with revenues of $49,000 per year, maintenance expenses of $3,800 per year, and operating expenses of $19,800 per year. Option 2 provides revenues of $46,000 per year, maintenance expenses of $3,800 per year, and operating expenses of $16,700 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".