Is there a way to get the last number in the first picture ($90.00) to automatically populate in the second picture? Also, get the reductions to automatically pull from the first picture.
Please let me know if you need a better understanding of what I'm asking.
I quickly conjured up a very simple example - see if that helps you. You can open the PDF with the Designer.
If both images represent areas of the same form, it souldn't be such a problem to add references to specific fields. For a better answer I would have to see the form.
In XFA forms your're using SOM expression to reference form objects, which are explained here: http://assuredynamics.com/index.php/2011/05/som-expressions/