How much does it cost from Calais France to Paris France?

To find an answer there is the site of the french trains but I only find it in french : http://www.voyages-sncf.com/weblogic/schedule/showWishesPage;VSCPRDSession=HdJrLtFJw8QJX8rNy18kfJdjykGQQyhYzLpJ5LyW4l4PyQnvhr8q!651010060