Dear Masters,

An body can help me for using sumproduct() per each group.
for example

| A B C
-------------
1| P 2 14
2| 5
3| 7
4|
5| P 3 7
6| 1
7| 1
8| 2

want result in column C1 and C5 is automatically if I sort in column A equal
P, and using some formula in C1 and C5

Thanks in advance