What is the ratio of the number of players in iOS Game Center to the number of game downloaders?

Question

iOS

Good afternoon, tell me, who knows, if the game center displays that there are total players, for example, 1000, then how many people usually bought the game?
At the same time, I noticed that if you watch the game center from a Russian account and from an American one (of the same game), then the total number of players will be different and they do not intersect.