If you look at HAC, Parents would have set a value for the grades right above the first class they have. We have ours set for below 90%. Therefore, any grade our son receives that is an 89 or below we receive a report. Each Monday you will receive a message that shows the stats from the previous week - and one from each class where the child has gotten a grade lower than you set. (I only get them on a Monday - not sure why). It's definitely better to view them on a computer than your phone - I get all those dashes on my iPhone, too. Each assignment the child received a lower grade under the value the parent set initially will be shown on a different line (or sometimes they squeeze together on the iPhone. You can PM me if this does not make sense - I'm only now working on my first cup of coffee and the light bulbs are starting to turn on in various pockets in my brain.
The first part shows the due date, assignment date, then the assignment name, formative/summative, then it shows the score, total points, then percent all the way to the right (which essentially is the same "score" shown a few columns earlier.