Try
D5=IF(SUMPRODUCT(--($B$5:$B$13&$C$5:$C$13=B5&C5))>1,"Yes","NO")
J17=SUM(IF(FREQUENCY(IF(D5:D13="Yes",MATCH(B5:B13,B5:B13,0),0),ROW(B5:B13)-ROW(B5)+1)>0,C5:C13,0)) with control+Shift+Enter
J18=SUM(--(FREQUENCY(IF(D5:D13="Yes",MATCH(B5:B13,B5:B13,0),0),ROW(B5:B13)-ROW(B5)+1)>0)) with control+Shift+Enter.
Check the attachment.
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