How to change color with condition?

[trainee]

I created a report with a subsummary. I display the average of student's attendance for all the courses token. And I want to change the color of the background each time the result is less than 85%.

It's a flag that said the student has been absent so often.

I had many answers, but no one take into concideration thae fact that the attendanceavrage is not a field but rather a subsummary generated while creating the report.

[-Queue-]

Base your background color calculation on GetSummary( summaryaverage; breakfield ), where summaryaverage is your summary field and breakfield is the field by which the subsummary is defined.