What you actually net (proceeds) from the sale doesn't matter. The gain is basically sales price - cost. Looks like the gain from the sale will use up all your Capital Loss Carryover which will reduce the taxable gain.
You get to first offset the loss against any gains you have each year so that can use more of it up. Then after applying the loss to the current gains you can take a max loss of 3,000 (1,500 MFS)per year. Turbo Tax does all the calculations for you. Just enter the prior year carryover amount. Or the carryover loss should automatically transfer into next year.
