Crystal Reports Pass shared Variable to Main report thru subreport

Message

   I am having issues with passing subreport data to my main report in a Group Footer.

I can get the data to show but i keep getting a zero dollar pass through in the first group footer.  So this makes all my totals off by a group

Example:

GF1

Branch 5 should have 1484.77 but shows 0

Branch 15 should be 4317.00 but shows 1484.77

Branch 22 should be 6011.11 but shows 4317.00

I cannot figure out why the 0 shows up.

I have both groups exactly the same in both main and subreport

subreport code is 

whileprintingrecords;

Shared NumberVar INV:= Sum ({@TOTAL}, {@BRANCH})/21

main code is 

whileprintingrecords;

shared numbervar INV;

INV;

I have them linked on @branch.