by admin » Fri Jan 23, 2015 1:52 pm
hello,
it depends on if you used opc's ps_checkout or not...
if you are using core ps_checkout the calculation is done usually in /administrator/components/com_virtuemart/classes/ps_checkout.php
and within OPC the calculation is done in :
/administrator/components/com_onepage/vm_files/ps_checkout_ext.php
which is optionally loaded from overrides in /components/com_virtuemart/themes/YOUR VM THEMES/ (an override dir) / ps_checkout.php
it further saved by opc in /administrator/components/com_virtuemart/classes/ps_onepage.php
ps_onepage.php is used to store order data + user information
best regards, stan