...Settlement #2: =INDEX(Table1[Settlement '#2],MATCH([@CustID],Table1[CustID],0),1)
Collection Amt.: =SUMPRODUCT((Table1[CustID]=[@CustID])*(Table1[Collection Amt.]))
Amount Due: =IF(([@[Settlement '#1]]+[@[Settlement '#2]])-[@[Collection Amt.]]=0,"no amount due",([@[Settlement...