Among all shipments delivered by Sue Newel, identify the percentage of shipments that were placed by Autoware Inc.
"Autoware Inc" is the cust_name; percentage = Divide (Count(ship_id where cust_name = 'Autoware Inc'), Count(ship_id)) * 100
SELECT CAST(SUM(CASE WHEN T3.cust_name = 'Autoware Inc' THEN 1 ELSE 0 END) AS REAL) * 100 / COUNT(*) AS per FROM shipment AS T1 INNER JOIN driver AS T2 ON T1.driver_id = T2.driver_id INNER JOIN customer AS T3 ON T3.cust_id = T1.cust_id WHERE T2.first_name = 'Sue' AND T2.last_name = 'Newell'