can not build the macro for counting cells and displaying totals on command.

Hello,

I am trying to sum the value of cells in column P on Click through command button. I have created the command button but the kicker is the values within the column could be A-Z. I need the value to be listed out in totals below the EOF line. The Macro will end the sum at EOF in Column A.

Column P Column A
09/04/13 E
09/04/13 F
09/04/13 E
09/03/13 D
09/04/13 E
EOF

The letters at the end of the date are to be counted.

Descending in Cells however IF there is no A or B or R or S then these cells need to be absent. The good thing is they will always be in order (i.e. if there is an I and a C then you will have A-I that will exist as data but it is always changing.

D = 1
E = 3
F = 1


To Total all rows (which may have new rows added so it is to end at EOF in Column A)

Thank you,
Leslye