Calculate the percentage of congress representatives from the Democrat party. Among them, how many postal points are in the Hawaii state?
DIVIDE(COUNT(party = 'Democrat'), COUNT(congress_rep_id)) as percentage; postal points refer to zip_code; state = 'Hawaii';
SELECT CAST(SUM(CASE WHEN T1.party = 'Democrat' THEN 1 ELSE 0 END) AS REAL) * 100 / COUNT(*), SUM(CASE WHEN T1.state = 'Hawaii' THEN 1 ELSE 0 END) FROM congress AS T1 INNER JOIN zip_congress AS T2 ON T1.cognress_rep_id = T2.district