How do I do a count sum that ignores duplicate items

B

Bob Phillips

=SUMPRODUCT(1/COUNTIF(A1:A100,A1:A100))

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HTH

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

Bob Phillips

If you mean sum, then you need

=SUMPRODUCT(1/(COUNTIF(A1:A100,A1:A100)),A1:A100)

--

HTH

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