if (
   my ($open_bal, $net_trx, $cash_total,
      $card_total, $cheque_total, $grand_total) =
   $body_text =~ /
      Opening[ ]Balance[ ](.*)[ ]Net[ ]Transaction[ ](.*)[ ]
      Cash[ ]Total[ ](.*)[ ]Card[ ]Total[ ](.*)[ ]
      Cheque[ ]Total[ ](.*)[ ]Grand[ ]Total[ ]([^ ]*)
   /x
) {
   tr/$,//d for
      $open_bal, $net_trx, $cash_total,
      $card_total, $cheque_total, $grand_total;

   print ...
}