Here are the results of how For Sale By Owners (FSBO’s) compared to sellers who were assisted by a real estate agent:

88% – Sellers who used a real estate agent
12% – FSBO sellers & others

$230,000 – The sale price for a typical agent-assisted home
$184,000 – The FSBO sale price for a typical home

Source: 2013 National Association of REALTORS® Profile of Home Buyers and Sellers