This is plain wrong. On standard video slot machines every single game has a random result, there is no 'memory' of past games in order to reach a certain payout percentage. There are jurisdictions and game types who do/did this (eg UK AWP, Germany street market) but in typical (Las Vegas style) casinos the hold is defind by the math of the game and is only true for large numbers of games played.
A casino game can be way over or under the theoretical payout percentage even after many games played, because it is - (pseudo) random. This is tested and certified by global gaming labs like GLI and others.