Thsi query will list all calendar days, and their daily attendance percentage for the year.  If it doesn't work, try typing it in, don't copy/paste.

LIST DAY DY DT MO EN AP (( AP * 1.0 / EN * 100 )) IF EN > 0

This one will list it as %.  Again, type it, don't copy/paste.  Be sure you get the spacing correct.

LIST DAY DY DT MO EN AP (( LEFT ( (( AP * 1.0 / EN * 100 )) ,5 ) + "%" )) BY DY  IF EN > 0