I copied standard layout into zform.
amount(wrshb) is coming from standard printprogram Rfkord10.
i want to print separately total debit amount sum which is ( + ) sign
and total credit amount sum which is ( - ) sign.
the filed is Rf140-wrshb.
final i want to display difference between debit and credit amount.
debit - credit = netbalance.
how to do this in scripts.