Sum Per Month


How can I sum the attached per month?

thank you
pdvsaProject financeAsked:
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ProfessorJimJamMicrosoft Excel ExpertCommented:
put this and drag right


see attached.

pls try

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ProfessorJimJamMicrosoft Excel ExpertCommented:
correction to my formula above

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pdvsaProject financeAuthor Commented:
Thank you.  Rgonzo's accounted for the years which is what I was after.  August 2016 and August 2017 were the same answer under Professor's.  I might have not made that so clear though.
ProfessorJimJamMicrosoft Excel ExpertCommented:
glad Rgonzo's solution worked for you. i did not notice at first glace your data had multiple years, so i posted a modified formula which is =SUMPRODUCT((MONTH($B$3:$KV$3)=MONTH(B$1))*((YEAR($B$3:$KV$3)=YEAR(B$1))*($B$4:$KV$4))) which works too.
pdvsaProject financeAuthor Commented:
Thank you for your follow up.  Much appreciated
ProfessorJimJamMicrosoft Excel ExpertCommented:
you are welcome.
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