總數 該年1月到指定月 (14411)

J2:K3=SUMPRODUCT(($A$2:$A$25=$H2)*($B$2:$B$25<=$I2+(A$1=$B$1)*99)*$C$2:$C$25)

另解J2:K3=SUMIFS($C:$C,$A:$A,$H2,$B:$B,"<="&$I2+(A$1=$B$1)*99)



留言

  1. 此例更適合於用SUMIFS

    =SUMIFS($C:$C,$A:$A,$H2,$B:$B,"<="&$I2+13*(A$1=$B$1))

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