>IIF(Trade.decTrade_Product_Balance <> 0 AND
>	(Trade.sTrade_Type_Pay_Rec = 'PAY' OR Trade.sTrade_Type_Pay_Rec AND Trade.sTran_Group_CD <> 'MAR'),
>		Transactions.decTrans_Amt, 0)
>

case
when Trade.decTrade_Product_Balance <> 0 AND
	(Trade.sTrade_Type_Pay_Rec = 'PAY' OR Trade.sTrade_Type_Pay_Rec AND Trade.sTran_Group_CD <> 'MAR') then
	Transactions.decTrans_Amt
else 0
end