Use SUMPRODUCT
=SUMPRODUCT(--(JAN_05'!$C$2:$C$65536=$A5),--(JAN_05'!$C$2:$C$65536,0),JAN_05'!J$2:$J$65536)

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Bernard V Liengme
www.stfx.ca/people/bliengme
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"Curtis" wrote in message
...
I am currently using the formulae to clcualte the sum for $A5

=SUMIF(JAN_05'!$C$2:$C$65536,$A5,JAN_05'!J$2:$J$65 536)

I would to modify this so it leaves out all numbers less than 0

Thanks