Sum if unique and another criteria
Thankyou for everyone's help yesterday it was great. I have one last
thing that is bafaling me to do with the same thing. I have a column in D that shows the number of days an invoice is over due | A | B | C | D | 10 N/A yes 0 10 N/A yes 0 11 N/A no 2 11 N/A no 2 12 N/A yes 0 13 N/A no 2 13 N/A no 2 13 N/A no 2 I wish to sum the number in coulmn D for those that are overdue (no in Column C) and that are unique entries (column A, invoice number), in this example there are 4 unique entries. With the help from everyone yestarday i have manged to be able to sum up the number of invoices that were overdue (Column C=no), so in the obove example the result would be 2 (invoice 11 and 13) by useing this array formula. =SUM(N(FREQUENCY(IF(C:C="No",MATCH(A:A&"",A:A&"",0 )),MATCH (A:A&"",A:A&"",0))0)) I am at a loss at how i can then extend this to sum up the same corrospnding values in column D. Oh and i then need to also devide this by the total number of invoices that failed. Hope someone can help. Many Thanks Gareth |
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