Hi All,

I have the following data which will always be sorted/grouped. I
basically want to sum all the A's, B's, and C's values (like a
subtotal)

Column Value
A 2
A 3
A 1
B 3
B 4
B 5
C 6
C 1
C 9

I want to find the the First and last row number A and also for B, so
Start A = 1, End A = 3
Start B = 4, End B = 6
Start C = 7, End C = 9

This issue I have is the column values can differ. For example,
Column
A
A
A
C
C
C

So,
Start A = 1, End A = 3
Start C = 4, End C = 6

Since I know the start and end of each grouping, I can then sum them.
If the column alwas had A,B,and C, then I know how to do this,
however, since it is dynamic, I am not sure how to write code dynamic
enough to handle this.

TIA