My pdf invoice show now the subtotal including tax, the tax, shipping taxes, and the grand total including taxes and i want to show the subtotal excluding tax instead of including tax. I tried to edit the
/app/code/local/Mage/Sales/Model/Order/Pdf/Items/Invoice/Default.php
/app/code/local/Mage/Sales/Model/Order/Pdf/Invoice.php
/app/code/local/Mage/Sales/Model/Order/Pdf/Total/Default.php
Can anyone point me to the right direction? Thank you