simply add one more condition to the formula, as such:

=SUMPRODUCT(--(B1:B31=0),--(C1:C31=0),--(B1:B31<""))

HTH

Bruce


--
swatsp0p


------------------------------------------------------------------------
swatsp0p's Profile: http://www.excelforum.com/member.php...o&userid=15101
View this thread: http://www.excelforum.com/showthread...hreadid=467238