Calculate the percentage of female actors and quality 2 who have appeared twice at the casting of the film 1672580.
Female actors mean that a_gender = 'F'; percentage can be computed by [cast_num = 2 AND a_quality = 2 in female) / (all female actors)] * 100%
SELECT CAST(SUM(IIF(T2.cast_num = 2 AND T1.a_quality = 2, 1, 0)) AS REAL) * 100 / COUNT(T1.actorid) FROM actors AS T1 INNER JOIN movies2actors AS T2 ON T1.actorid = T2.actorid WHERE T2.movieid = 1672580 AND T1.a_gender = 'F'
database name:db_id movielens
users table users Cols: user id dtype integer, age dtype text, user gender dtype text, occupation dtype text, 
directors table directors Cols: director id dtype integer, director quality dtype integer, average revenue dtype integer, 
actors table actors Cols: actor id dtype integer, actor gender dtype text, actor quality dtype integer, 
movies table movies Cols: movie id dtype integer, year dtype integer, is English dtype text, country dtype text, runningtime dtype integer, 
movies2actors table movies2actors Cols: movie id dtype integer, actor id dtype integer, cast number dtype integer, 
movies2directors table movies2directors Cols: movie id dtype integer, director id dtype integer, genre dtype text, 
u2base table u2base Cols: user id dtype integer, movie id dtype integer, rating dtype text, 
