- $subtotalnetamount = $form->format_amount(\%myconfig, $subtotalnetamount, 2, " ");
- $subtotaltax = $form->format_amount(\%myconfig, $subtotaltax, 2, " ");
- $subtotal = $form->format_amount(\%myconfig, $subtotalnetamount + $subtotaltax, 2, " ");
+ $$subtotalnetamount = $form->format_amount(\%myconfig, $$subtotalnetamount, 2, " ");
+ $$subtotaltax = $form->format_amount(\%myconfig, $$subtotaltax, 2, " ");
+ $$subtotal = $form->format_amount(\%myconfig, $$subtotalnetamount + $$subtotaltax, 2, " ");