map { $form->{"${_}_$i"} = $ref->{$_} } keys %{$ref};
$form->{"discount_$i"} =
$form->format_amount(\%myconfig, $form->{"discount_$i"} * 100);
map { $form->{"${_}_$i"} = $ref->{$_} } keys %{$ref};
$form->{"discount_$i"} =
$form->format_amount(\%myconfig, $form->{"discount_$i"} * 100);