Kelley Blue Book employs a team of statisticians that analyze millions of transaction records to determine what the typical mileage of a vehicle should be based on its age and time spent in the market. The typical mileage points change regularly based on the mileage data in our transaction records. If a vehicle’s mileage is higher or lower than the typical mileage, it will receive the necessary value adjustment to account for its mileage situation. Generally, lower-mileage vehicles have a higher price or value.