Percentage of Running Totals

Hello,

I am needing to show the ratio of one running total over the grand total (which is also a running total). The issue is that the grand total is not fully evaluated until the end of the group, so the percentages are thrown off. For example, I need to evaluate P (and F is the result of a complex formula):

GT = A1+A2+A3
     A1=F1+F2+F3 P1=A1/GT
          F1
          F2
          F3
     A2=F1+F2+F3 P2=A2/GT
          F1
          F2
          F3
     A3=F1+F2+F3 P3=A3/GT
          F1
          F2
          F3 

The issue is that you cannot use the Summary function for A because Summary won't work with formulas like F. Therefore, A is a custom three-part running total (initialize, increment, total) in the form of a forumla. For the same reason, it seems that GT also must be a three-part running total formula.

As I mentioned earlier, this causes P to evaluate when GT has not been fully calculated. Is there any way to evaluate P after GT is fully evaluated? Or should I be going about this a different way?

Each F is a formula that conditionally sums the details below it. The details sometimes include duplicate values and sometimes include null values. F needs to show the sum of each distinct record, therefore F is generally:

IF distinctcount(d,F)=0 and distinctcount(e,F)=0 THEN 0
ELSEIF distinctcount(d,F)=0 
THEN sum(e,F)/distinct count(d,F) 
ELSEIF distinctcount(e,F)=0 
THEN sum(d,F)/distinct count(e,F) 
ELSE sum(d,F)/distinct count(e,F) + sum(e,F)/distinct count(d,F) 

where d and e are details contained within F's group. I can attempt to elaborate on this F formula further if need be, but I think this should suffice.

Thank you!