? about cashing out

i've read bankroll stratgies on how to manage your money and i'd say im pretty good at it. but i have a question. if you are trying to build a bankroll to move up in the limits you play. and your a 21 year old student that could always use extra cash, what percentage of your bankroll should you cash out when you cash out. i always would deposit 250 get up to about 500 or so ...cash out 260 or so...then most of the time go broke. But since my last deposit back in november. i've cashed out around 250 or so 3 times and have 300 in. but i want to build this bankroll instead. So say i wanted to cash out 200 dollars or so sometime ...how high should my br be b4 i do that? thanks

Well...It depends. What does it say in bankroll management book about cashing out? Specifically what does the part about how much ( level) to play at. MTT play you should be at 1% ($2.50) sit-n go's like 3% and never put more than 10 % in a cash game. Just as a guideline