Although the default attendance entry is Present, unless this screen is saved, the attendance will not be seen as captured for this specific day.
To mark Absent, click on the check box in the Absent column.
To mark Present, click on the check box in the Present column (if previously marked as absent or other).
To mark Other attendance, click on the drop down arrow in the Others column where you can select Leave (e.g. school camp, sporting event), Late Arrival or Left Early, none of these options will negatively impact the attendance of the student and will be counting towards the Present percentage: