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WITH zader AS ( SELECT COUNT(i.inventory_id) as delayed_count FROM rental r JOIN inventory i ON r.inventory_id = i.inventory_id JOIN film f ON f.film_id = i.film_id WHERE DATEDIFF(return_date, rental_date) > rental_duration ) SELECT i.store_id, (COUNT(i.inventory_id) / (SELECT delayed_count FROM zader)) * 100 AS delayed_percent FROM rental r JOIN inventory i ON r.inventory_id = i.inventory_id JOIN film f ON i.film_id = f.film_id WHERE DATEDIFF(return_date, rental_date) > rental_duration GROUP BY i.store_id; ; show status like 'Last_query_cost';

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