% Who Relisted For Sale equals the number of homes in the defined area (city or zip) that relisted their homes for sale after being on the market for at least a 90 day period. For example, if a home was on the market with an agent for 3 months and then relisted for sale with another agent after not selling it is considered to have been "relisted".
A positive number (anything above zero) might point to a buyers market as sellers search for the right agent to get their home sold. Often times homes being relisted for sale were overpriced in the initial run or suffered from an inexperienced agent. It can be a good indicator of where the market currently is if a high # (more than 20%)of homes are being relisted for sale.