In Vegas-style Klondike, you begin each game at -$52, or -$1 for each card in the deck. Every card you move to a foundation earns +$5. Once you have played 11 cards to the foundations, you have earned back $55 and moved into profit.
In Draw One Vegas games, you may pass through the deck once. In Draw Three Vegas games, you may pass through the deck up to three times.