Just for stupidos like me, Raze:
let's say, I kill a monster without wisdom and get 100 XP (easy maths for me, ok?)
At lvl 1 wisdom, I get 1% bonus => so the screen says 100 and I can use my calculator to see, I got 101, right?
At level 2, I still see 100 for the same monster (I reloaded and have the same level), but my calculator shows me, I have 2% bonus now => 102?
Did I understand this correctly?