Can't figure why cell value always shows 1, won't increment

[dpan]

TotPriority3	P3#Count
6	1
6	1
6	1
6	1
6	1
6	1

if [Row-1:P3#Count] = 0 then 1
elseif ([Row-1:P3#Count] + 1) <= [Row-1:TotPriority3]
then [Row-1:P3#Count] + 1
elseif ([Row-1:P3#Count] + 1) > [Row-1:TotPriority3]
then [Row-1:P3#Count]
else 0
endif

I should be getting:

P3#Count

1

2

3

4

5

Seems [Row-1:P3#Count] always evals to zero? P3#Count type is Int32

[dpan]

Figured it out. I had group by wrong.