Different games have different hold percentages, to include 94 to 98 percent, or thereabouts.
While being a fun game, bear in mind, roulette the bet on sheer chance, and once we have seen with the scenarios above, you finally end up at the mercy of Lady Luck. https://kenhtingame.com/giai-tri/rikvip-huong-dan-choi-mini-poker-tro-choi-don-gian-vui-nhon/458393