SELECT
"smoker",
AVG("tip" / "total_bill" * 100) AS percent_tip
FROM @kaggle.saurabhbadole_restaurant_tips_dataset.tips
GROUP BY "smoker"
SELECT
"smoker",
AVG("tip" / "total_bill" * 100) AS percent_tip
FROM @kaggle.saurabhbadole_restaurant_tips_dataset.tips
GROUP BY "smoker"
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