Investors & landlords

I remember deducting the taxes maybe a couple times. So for this, you're saying I need to forget how much I paid in taxes and basically have the $3k as a gain? I've never done this and not sure if TT software will ask you how much I paid for it and how much I am selling it for?

 

The vacant lot is in FL but we live and file taxes in CT, so my question I hope is generic to tax filling when I ask who needs to put the sale on the taxes, I think?