Calculate the percentage of cards in Spanish. List them by name.
Spanish refer to language; Percentage refer to DIVIDE(SUM(ID where language = 'Spanish'), COUNT(id))*100
SELECT ( SELECT CAST(SUM(CASE WHEN language = 'Spanish' THEN 1 ELSE 0 END) AS REAL) * 100 / COUNT(*) FROM foreign_data ), name FROM foreign_data WHERE language = 'Spanish'