--- C:\Program Files (x86)\gnucash\share\gnucash\guile-modules\gnucash\report\fancy-invoice.scm 
+++ C:\Users\Jeremy King\Documents\fancy-invoice.scm 
@@ -454,6 +454,7 @@
 		    (if reverse-payments?
 			(gnc-numeric-neg(xaccSplitGetValue split))
 			(xaccSplitGetValue split))))
+             (payment-style "grand-total")
 	     (row '()))
 
 	(total-collector 'add
