How to display bank account number based on operating unit?

By using Below code we can achieve this.

select a.bank_account_num from ce_banks_v c,ce_bank_accounts a,ce_bank_branches_v d
WHERE a.bank_account_id IN (SELECT b.bank_account_id
                              FROM CE_BANK_ACCT_USES_ALL b
                              WHERE b.org_id=84-- :$FLEX$.XXST_OPERATING_UNIT1
AND (NVL(AP_USE_ENABLE_FLAG,'N' ) = 'Y' OR NVL(AR_USE_ENABLE_FLAG,'N' ) = 'Y' ))
AND   c.BANK_PARTY_ID = a.BANK_ID
AND  d.branch_party_id=a.bank_branch_id
--and c.bank_name='Petty cash'
and d.bank_branch_name='Petty Cash - USA'
  ORDER BY a.bank_account_name;

Here XXST_OPERATING_UNIT1 is a value set for operating unit.