Is there a reason Excel won't perform the SUMIF function on a cell with a date formula? In the example below, Excel ignores the SUMIF when I have a formula A6:A18. But if I simply type in values, it calculates fine. My entries are serial dates formatted as a date. I’ve even tried =SUMIF($A$6:$A$18,”=”&A6,$B$6:$B$18) and that doesn’t work either.
<PRE>
9/16/2014 OFF 0.00 "=SUMIF($A$6:$A$18,A6,$B$6:$B$18)"
9/17/2014 0.50 0.50
9/17/2014 0.75 0.75
9/18/2014 0.25 0.25
9/18/2014 0.00
0.00
0.00 </PRE>
Assistance is appreciated.
<PRE>
9/16/2014 OFF 0.00 "=SUMIF($A$6:$A$18,A6,$B$6:$B$18)"
9/17/2014 0.50 0.50
9/17/2014 0.75 0.75
9/18/2014 0.25 0.25
9/18/2014 0.00
0.00
0.00 </PRE>
Assistance is appreciated.