This provision prohibits the application of different profit margins for identical agricultural and food products coming from different countries. See also the Judgement of the European Court of Justice of 11 March 2021 in Case C-400/19 available at: https://curia.europa.eu/juris/document/document.jsf?text=&docid=238748&pageIndex=0&doclang=EN&mode=lst&dir=&occ=first&part=1&cid=141834 