The Grading History is another report that is especially helpful if there are multiple course graders or if there is a need to review the changes made to a specific student's assignment.
Under the Course Management section of the course menu, go to Grade Center > Full Grade Center.
Locate the test column and the grading cell of the student you would like to view. Hover your mouse over the cell and click the down arrow that appears.
Select View Grade Details from the options.
On the Grade Details page, click the Grade History tab.