Have i misunderstood this?

[Pasterbator]

I'm not sure why this has hit me all of the sudden, but i need an answer to this before i go to sleep.

A standard preflop raise is 3x the BB. This seemed like a very obvious concept until about 2 minutes ago. So if someone can just clarify this for me, thatd be great.

Example:

Blinds are 50/100. I'm UTG. Am i raising TO 3x the BB (300) or am i raising 3 BBs (400 total chips)?

90% of my raises at this level are to 300 chips. Is that the "correct" raise?

I can't believe I had to ask this question, but for some reason I can't give myself a definite answer.

Thanks (I've yet to be flamed on these boards, so if you feel the need to get some anger out, go ahead)

Jason