The list price versus the selling price ratio is an average of all homes sold. You should know that in most cases there is also a variance between price points. That is to say that an overall average figure may not reflect the variance at say, below $400K, or above $900K,
The overall average list price was $514,082
The overall average sold price $501,191, yielding a LP vs. Sp ratio of 97.4%
In July of 2007 it was 98.3%, so one can see the effects of the market shift.