If you want to get
3/17
instead of
17.65%
, formula should looks like:
=Fields!grade.Value & "/" & Fields!count.Value
Update your query:
SELECT ProductName, Grade, COUNT(Grade) AS CountOfGrades, (SELECT COUNT(Grade) FROM Inspection) AS TotalOfGrades
FROM Inspection
WHERE (Branch = @branchno) AND (Date BETWEEN @DateFrom AND DATEADD(day, 1, @DateTo))
AND (Grade <> '')
GROUP BY ProductName, Grade
ORDER BY ProductName
and formula.