Guild Wars 2

I have a question about MF cap.
That 300% cap is just for MF from Luck OR its hardcap for all MF? For example can I have 300% from Luck, 20% from infusion, 20% from food, 50% from booster and 10% from account AP bonus? (so in fact 400%) Or its simply capped on 300%?

bump i’d like a response to this one aswell, i can’t seem to find an answer.