7500 Hands Win Rate

[BWillie]

I've played 7500 hands and I only have a net profit of $173.88. I've played .5/1 at Party. How can I find how much my win rate is? I am not sure if for example 3/100BB, if the BB means BB big bets or big blind? I've been three tabling so I can imagine I'm only making somewhere around $3.85 an hour. Sorry for the seemingly newb question, I just haven't really been focusing on my win rate, just learning how to get better but since I have quite a few hands under my belt I would like to see how I am coming out.