All explained in http://www.xldynamic.com/source/xld.SUMPRODUCT.html

--

HTH

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


"pm" wrote in message
...
Thanks Dave. Just out of curiosity, what is the purpose of the two dashes
(--) in the formula?

"pm" wrote:

Hello there-

I have a column of 10 numbers. The last row of the column is a control
value. I would like to know the easiest way to see if any of the
previous 9
numbers in a column divided by the control number is .6 or less. I
tried OR
function and it works, but I will be dealing with bigger columns of up
to 100
numbers to compare to a control number and the OR function in this case
would
be cumbersome.

PM