Partial grading automatically displayed when using rubrics for grading?

[Margherita]

Hello, I set rubrics for grading for an assignment, so that grades will show up automatically in the Grades section. I set the grading in percentage (0 being not graded, and 100% fully graded). However, this assignment has multiple reviewers/graders.

My question: what will I see in the Grades section if for example only one out of two reviewers gives a score? What I want is to see e.g. 50% if only one of the reviewers completed this task. Is this possible? I am asking because I cannot test this in my current environment.