Percentage of questions with accepted answer depending on the weekday when the question was posted

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Computational Science

Q&A for scientists using computers to solve scientific problems

;WITH tmp AS
(SELECT Id, AcceptedAnswerId AS Acc,
    Period =DATEPART("weekday", CreationDate)
FROM Posts
WHERE PostTypeId=1
)
SELECT Period, ROUND((COUNT(Acc))*100.0/(COUNT(*)),2) AS percentage
FROM tmp
GROUP BY Period
ORDER BY Period

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