Question - How can I see all students who have 100% but also have no lates?
Answer - A way to see this is to use the Percentage Attendance Between report (Reporting>Reports>Attendance). Set the attendance between options to 100% and 100% and click choose. This will now show you all the students with 100%. This also includes a column for Lates - In the blank white row below the header type 0.0 and click enter on your keyboard - this will now be all students with 100% and 0 lates.