Use the trigger Number of items with a specific column value:
if the number if items where "Dept" has a value of "3" is ">" "0"
then use a flat rate discount of 30.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.