Wennerstroem’s fortune is numbered in various parts of the book around 90 to 200 million kroner, which at that time may have been around 9 to 20 million Euros.
Considering the size of his empire this seems very little to be realistic, and in Book 2 the total amount Lisbeth has taken from him is said to be around 250 million dollars, which makes more sense.
There seems to be some inconsistency here, or am I mistaken?