What percentage of votes are from the nominated episodes?
nominated episodes refers to result = 'Nominee'; percentage of votes = DIVIDE(SUM(result = 'Nominee), SUM(Votes)) as percentage
SELECT CAST(SUM(CASE WHEN T1.result = 'Nominee' THEN T2.votes ELSE 0 END) AS REAL) * 100 / SUM(T2.votes) FROM Award AS T1 INNER JOIN Episode AS T2 ON T1.episode_id = T2.episode_id;