Question: How many percent of domestic violence cases were arrested in West Pullman?
SQL: SELECT CAST(COUNT(CASE WHEN T2.arrest = 'TRUE' THEN T2.report_no END) AS REAL) * 100 / COUNT(T2.report_no) FROM Community_Area AS T1 INNER JOIN Crime AS T2 ON T2.community_area_no = T1.community_area_no WHERE T1.community_area_name = 'West Pullman' AND T2.domestic = 'TRUE'