To change these settings, navigate to the Valuations tab under the Website -> Settings section.
The website valuation settings relate to the vehicle valuations that customers can retrieve from your website via your Sell Your Vehicle or Part Exchange pages.
Firstly you need to enable them altogether, then you can choose the Percentage Adjustments, Offer Range and Rating Adjustments based on AutoTrader Retail metrics rating. These options give you control over how valuations are adjusted and what offer ranges you'll give to customers when they wish to sell you a vehicle.
Valuations are sourced from AutoTrader and are subject to a vehicle data charge when an AutoTrader account is not connected.