rarityPercent
The percentage of players of this game that earned the achievement.
Declaration
var rarityPercent: Double? { get }Discussion
The rarity percentage ranges between 0.0 and 100.0, inclusive, where 0.0 indicates that no player has earned the achievement, and 100.0 indicates that every player has earned the achievement. This property is nil if there isn’t enough data to compute the rarity of the achievement.