When I bet from one of the gambling site. At first, i always won the bet. But after how many days in betting from this, my winning price will slowly decrease easily. And my cousin told me that my bet stake is opposite for their trick.
Example
A. +5.0
B. -5.0
I bet +5.0 since it think that i will won the game, because when it comes to math (+) is increase. But in this bet (-) is most of the player won the game.