Final grade column

Community Member

I have just had something upsetting happen.  I am very careful before I post final grades, I double check everything and also keep a paper grid of my students grades.

I had a student show me where Canvas had her final grade as a 85.17 but I had written it on my paper (last Fall) as an 84.23; I copied this from Canvas last Fall.  The two grades are the difference between a 2.5 and a 3.0.

Is there anyway Canvas could have updated or changed the grade after I wrote it down??  She was not the only student affected.  

I am so confused as to how I wrote down a different grade???