Among all the posts posted by the most influential user, identify the percentage with a score above 50.
The user with higher reputation has more influence; DIVIDE(COUNT(stats_posts.Id where Score > = 50 and MAX(Reputation))), COUNT(stats_posts.Id where MAX(Reputation)) as percentage;
SELECT CAST(SUM(CASE WHEN T2.Score >= 50 THEN 1 ELSE 0 END) AS REAL) * 100 / COUNT(T1.Id) FROM users T1 INNER JOIN posts T2 ON T1.Id = T2.OwnerUserId INNER JOIN ( SELECT MAX(Reputation) AS max_reputation FROM users ) T3 ON T1.Reputation = T3.max_reputation