You can find in moodle the grading table related to all the R&Ds and to the group work.
Before making any questions related to how the final grade will be computed, read the course's syllabus again. All the info is there.
"0" refers to absentees; please check that I did not make any mistakes.
In case of doubt, send me an email.
Enjoy your holidays (but also study for the exam)