I realized late that I assigned 100 instead of 150 for the total possible points (not weighted). I already took attendance (more than once). Now I need to correct my mistake. However, the guides that I could access all said that I couldn't do it. I can do it, the system allows but apparently it distorts overall grade calculations. Is there any way that I can change the point value without messing up the students' grades (except that after the update, their attendance grade will change as it will be re-calculated)