The 7% refers to how much you will lose of every dollar you wager on insurance if you took it every time it was offered.Mr. T said:Where I play just about everybody take even money for BJ. The wizard of odds say the house has a 7% advantage on this play.
But even if you take even money EVERY TIME you have a BJ, it'll cost you only between 1 and 2 cents for every $100 you wager while playing due to the frequency of this happening.