What percentage of projects in the City of Santa Barbara are in suburban metro?
City of Santa Barbara refers to school_city = 'Santa Barbara'; percentage refers to DIVIDE(school_metro = 'suburban'; school_metro)*100
SELECT CAST(SUM(CASE WHEN school_metro = 'suburban' THEN 1 ELSE 0 END) AS REAL) * 100 / COUNT(projectid) FROM projects WHERE school_city = 'Santa Barbara'