Some UK universities even have a grade A or B or C or D for the modules and dissertation. You wonder how they arrive at Pass, Merit or Distinction. For example, a student got A's in 3 modules, a B for the 4th module and a B for dissertation, yet the final result a PASS. Not knowing the %ges I would expect that this student gets at least a MERIT. It is all just confusing and it depends with the university you are in