Yes! If you use percentages rather than points for the grading breakdown in your syllabus, you can change the Grades Area settings in your Blackboard course to do the same.
Can I set up weighted grades in Blackboard?
How do I add a new assignment to Grade Center?
In Blackboard’s Grade Center, your gradebook is set up in a table, much like a spreadsheet, and each assignment, quiz, etc. has its own “Grade Column.” How you add a new grade column varies depending for different types of assessments.
Where can I find grades in Blackboard?
A Grade Center link appears in the left-hand menu in your Blackboard course under the Course Management heading.
Can I change my Blackboard course menu?
Yes! The course menu, which appears on the left side of every page in your Blackboard course site, is initially a default one, but you have many options for changing it.