The short answer: BAC costs between $45 a month and $250 a month depending on the Formula (F1, F2, F3) and how much is consumed (1 or 2 bottles per month).
Many people report that they are able to reduce or stop using other supplements as well as consume less food (because their body is more efficient) – so they end up better off financially.
The long answer: Please read The Cost of BAC.