Bankroll Requirements

Hello:

How much bankroll would a person need to overcome the effects of standard deviation and avoid going broke if the following conditions prevailed? For every 1000 wagers, a person wins 144, ties 45 and loses 811. Each wager is $30. When you win you get $200. and when you tie you get $100. Under these conditions, the person would have an expected value of plus 11%. I don�t have the computer skills or statistical skills to figure this out. Any help would be appreciated.