Primero obtendría el Máximo y el mínimo y realizaría un JOIN
Código SQL:
Ver originalSELECT DISTINCT T1.IMDB_ProductID AS IMDB_Producto, T1.NSO_ProductID AS NSO_Producto, T1.ProductName AS Producto, T1.VariableValue,
T2.ValorMax, T2.ValorMin, T1.ValorMed
FROM Audited_Facts_Regular T1
INNER JOIN
(SELECT IMDB_ProductID, MAX(VariableValue) AS ValorMax, MIN(VariableValue) AS ValorMin, AVG(CONVERT(money, VariableValue, 0)) AS ValorMed FROM Audited_Facts_Regular
WHERE (VariableName LIKE '%offer%'OR VariableName LIKE '%regular%') AND IMDB_ProductID=178399
GROUP BY IMDB_ProductID) T2
ON T1.IMDB_ProductID = T2.IMDB_ProductID
WHERE (T1.VariableName LIKE '%offer%'OR T1.VariableName LIKE '%regular%')
AND T1.IMDB_ProductID=178399
GROUP BY T1.VariableValue, T1.IMDB_ProductID, T1.NSO_ProductID, T1.ProductName
ORDER BY T1.Producto ASC
Espero te sirva.