I have a view (vMonthlyBalSheet) that totals user activity by month
SELECT UserID, DATEPART(yy, ActivityDate) AS ActivityDateYear, DATENAME(m, ActivityDate) AS ActivityDateMonth,
COUNT(*) AS DaysWorked, SUM(Offage) AS NetCashVar, SUM(UnitsSold) AS TotalSold
FROM vBalanceSheet
GROUP BY...