What is the percentage of the total products ordered were not rejected by Drill size?
rejected quantity refers to ScrappedQty; rejected by Drill size refers to Name in ('Drill size too small','Drill size too large'); percentage = DIVIDE(SUM(ScrappedQty) where Name in('Drill size too small','Drill size too large'), OrderQty)
SELECT CAST(SUM(CASE WHEN T2.VacationHours > 20 THEN 1 ELSE 0 END) AS REAL) * 100 / COUNT(T1.BusinessEntityID) FROM EmployeePayHistory AS T1 INNER JOIN Employee AS T2 ON T1.BusinessEntityID = T2.BusinessEntityID WHERE T2.CurrentFlag = 1 AND T2.SickLeaveHours > 10