How to put this into set analysis (Urgent)

[#1]

Hi

IF PLANSTATUS = 3 OR PLANSTATUS = 12 OR PLANSTATUS = 13 THEN

     PLANPAYERSHARECV :=  0;

  ELSE

     IF PLANSTATUS = 6 OR PLANSTATUS = 8 OR PLANSTATUS = 9 THEN

        PLANPAYERSHARECV :=  PAYERSHARECV;

    ELSE

         IF USDCOST <> 0 THEN

            PLANPAYERSHARECV :=  ROUND(USDCOST * GET_CONVERSIONRATE(1,POLICYCURRID,TRANSDATE),2);

      ELSE

            PLANPAYERSHARECV := PAYERSHARECV;

      END IF;

     END IF;   

  END IF;

Help me Out Guys

Regards,

Venkatesh Salla