How can I adjust the listing price listed on my profile?

I believe that you are referring to online sites such as Zillow etc. These are not completely accurate as they have not walk through your home to know all the details. It also takes into account properties that are tranfered between family members for $5, or foreclosures, and so many other factors.
A REALTOR would be able to give you up to date accurate info on the range of value on your home based on seeing it and comparing that to currently listed and closed homes similar. Talk to a REALTOR Or even an appraiser to have this value determined based on current market details.

That would depend on where you are seeing the post. Are you talking about websites like zillow that give an estimate? They are only 70% accurate as the computer pulls the comps with no rhyme or reason. You should be able to go to those sites, claim it as the owner and adjust.

I use a variety of information to come up with a value for a home. The first thing I look is the county records for previous sales of similar homes in the area. The condition of the homes, upgrades and location will all factor in to the decision making. Ultimately it is up to the homeowner to set the price of their home with good advice from a qualified agent.

Anytime you see an estimated value for your home on a 3rd party website, you should be able to "Claim your Home" and update any inaccurate information.