So my query so far is:
Sum(IIf([tblrawdata]![DC_NO1] Is Null And [tblrawdata]![DC_NO2] Is Null And [tblrawdata]![DC_NO3] Is Null And [tblrawdata]![DC_NO4] Is Null,1,0))
Which show's me the result I am looking for which is to set the count as 1 if the records are null.
My next part of this...