So, are you saying that you want something like this:

=SUMPRODUCT(--(M2:M10="b"),--(C2:C10<100),--(C2:C1050))/SUMPRODUCT(--
(M2:M10="b"),--(C2:C10<""))

?

Hope this helps.

Pete

On Jan 17, 1:54*am, Rene wrote:
This formula works except when a different column has data in it.
SUMPRODUCT(--(M2:M10="b"),--(C2:C10<100),--(C2:C1050))/COUNTIF(M2:M10,"b")
c * * * * d * * * * * * * *m
75 * * * * * * * * * * * * b
* * * * * 200 * * * * * * b
25 * * * * * * * * * * * * b

It returns 33% instead of 50%