=SUMPRODUCT(--(LEFT(A1:A100,1)="G"),B1:B100)

--

HTH

RP
(remove nothere from the email address if mailing direct)


"Jason" wrote in message
...
I have two column of data like:

A B
A45 $345.68
A35 $23.96
G38 $457.98
A13 $670.01
G68 $43.82

How may I sum the Column B data only if the corresponding column A data is
started by G?

Thanks.

Jason