How likely is it that Paulsen makes appearances or even bench appearances for Bournemouth during his three year contract? Because surely he will need to make a significant number of them for the add-ons to be paid.
The add ons could be anything. From something as simple as 1 League appearance or the ridiculous like Bournemouth winning the Premier League that season (Blackburn Rovers got stung by putting that in Phil Jones' move to Man United).