You can force it to be zero with an if statement like so:

=IF(ISERROR(SUMPRODUCT(--($C$3:$C$216=I3)--($F$3:$F$2160))/COUNTIF($C$3:$C$216,I3)),0,SUMPRODUCT(--($C$3:$C$216=I3)--($F$3:$F$2160))/COUNTIF($C$3:$C$216,I3))


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Regards,

Michael Arch.




"carl" wrote:

I'm trying to modify this formula so that it does the calculation even if
some of the cells in the ranges do not have "values (N/A or other errors).
Thanks you in advance.

=SUMPRODUCT(--($C$3:$C$216=I3);--($F$3:$F$2160))/COUNTIF($C$3:$C$216;I3)