The Borussia Dortmund star is one of the most sought after players in the world today and has been linked to some of the biggest clubs in Europe, including the two Manchester clubs.
According to football agent Volker Struth, who is also Toni Kroos' agent, any transfer would exceed the £250m mark and could possibly reach £300m.
Speaking to COPE (via Manchester Evening News), Struth said: "Haaland has a release clause. The entire package with five-year salary and commission for the agent will probably be on the border of 250 to 300 million euros."
Struth further emphasised: "Ten percent more or less will not be what will lead him to make a decision, he wants to win titles."
Haaland is contracted to Dortmund until 2024 but is currently sidelined due to a hip injury, and his father, Alf-Inge, has revealed that it is unlikely Haaland would return to action for Dortmund until after Christmas.
“He's doing relatively well considering the situation, but he'll be out for a little while,” he told Norwegian channel TV 2. “It would be a bonus if he gets some games before Christmas, but it's rather unlikely.”