I知 wanting to set up passing revenue to Google Adwords and need to know the server side variable Zen-Cart uses for the order total. I'm using the newest version of Zen-Cart.

The example the following article gives is total_value
http://www.ppchero.com/increase-your...alue-tracking/

The section of the article that I知 specifically referring to is about halfway down and entitled:

Dynamically Inserting Value Into AdWords Conversion Code For eCommerce