Fields are
DMACode,
PropID,
Max([All meter reads].ReadDate) - Min([All meter reads].ReadDate) as NumDays,
Max([All meter reads].Reading)-Min([All meter reads].Reading) AS TotConsum,
TotConsum/NumDays AS DailyHHConsump,
DailyHHConsump*365 AS YearlyConsump
Ideally I am looking to sort by...