This article explains the customizable settings within a classroom's gradebook.
Letter Grades and Plus/Minus
In the Gradebook Settings, Instructors have the ability to configure which letter grades correlate to what percentage ranges. Decimal points will round to the nearest letter grade. Instructors have the freedom to disable any letter grades and adjust where each enabled letter grade’s Range Start, cascading down to the others.
Late Penalties
In the Gradebook Settings, Instructors can control the late penalties that are applied to activities. Instructors can configure how much the grade decreases by point or percentages per day or week.