I have come across different numbers. Some argue that only 1% of players are profitable in the long term. Others say that less than 1%. Still others claim that the number of such players is 0.01%.
I have found out the percentage of gamblers that are losing before, but I have seen sites that said 90 to 95% while also some said 3 to 5% and some said 4% and so on. What I noticed was that almost all gamblers are losing.
I do not think that is a long term estimate because if it is long term, I guess the percentage will be less than 4%. This is not what we should bother about unless will have something to write about it like a project or news or something like that.
There are no accurate results for this, google is going to give you a different result from Ai, if you use different engines the estimation would be different. We can all come to the conclusion that the percentage of gamblers that make profit are very low because that's how the game was designed. Long term gamblers lose more, it's different from someone that won from a few trails and took a break, gamblers like this can escape losses.