SELECT 
    query_name,
    ROUND(AVG(rating * 1.0 / position), 2) AS quality,
    ROUND(SUM(CASE WHEN rating < 3 THEN 1 ELSE 0 END) * 100.0 / COUNT(*), 2) AS poor_query_percentage
FROM 
    Queries
WHERE 
    query_name IS NOT NULL
GROUP BY 
    query_name;