Attached is a pic of my file properties.  The "Description" is the one I am having issues with.

How do I make the Evaluated Value of "Slot Quantity" show up in the description?

I have tried these two:

\\\$PRP:"PARTNAME""SLOT QUANTITY@DEFAULT@93013.SLDPRT"\\\$PRP:"ANGLE"

\\\$PRP:"PARTNAME"\\\$PRP:"SLOT QUANTITY"\\\$PRP:"ANGLE"