This query will list all students, with their total enrollment, total days present, total days absent, and a percentage column. Modify school year as necessary.
LIST STU AHS STU.ID STU.LN STU.FN AHS.EN AHS.PR AHS.AB (( LEFT ( ( AHS.PR * 1.0 ) / AHS.EN * 100, 5 ) + "%" )) BY (( AHS.PR / AHS.EN )) IF AHS.YR = 2017-2018
You may have to type out the query, rather than copy/paste it, to get it to work.