GetDataCell for Rows & Columns

I am trying to use the the GetDataCell function for both Rows and Column and the math is not working.  For the row, I am using GetDataCell to sum several G/L accounts.  For the columns I have Actual(C1), Budget (C3)and the 3rd is a GetDataCell (C3) to take the difference between Actual and Budget.  I am not getting any errors but the Variance Column (C3) is returning the value in the first column.  Its as if the second column has a zero loaded.