Abstract: System and method for computing price values associated with vehicle history attributes including a vehicle history database with vehicle history records, a transaction database, a vehicle history knowledge determination module adapted to determine whether a sale transaction related to a transaction record occurred with buyer's knowledge of the vehicle history attributes associated with the vehicle of the transaction record and to classify each transaction record based on whether buyer possessed knowledge of the vehicle history attributes, and a price adjustment module adapted to determine price values for the vehicle history attributes based on the vehicle history datasets and classification of the plurality of transaction records. In accordance with one aspect, the present invention may be implemented as a computer readable medium with instructions.