([Price] + (abs([Option1] >+ 1)?[Option1Inc] - [Price]:0)) * [Quantity]
This variation is what ended up working...
The last problem is hiding the dropdown if no options exist... If I do the Hide if recordset option1 is empty, the page fails when I add an item with no options.
Notice: Undefined index: eCart2
$ATC_itemPrice = floatval("".$row_rsProduct['sku_price'] ."");// column binding