Calculation of Final Classification "105 best credits"

I'm in my final year of university and I've been getting 2:1's in nearly all of my assignments. However, I did really bad in an exam and I think I got 30-40%. This is pulling my average grade down by ALOT as it is worth 50% in the module.

For the calculation of the final classification, my university stated that they will calculate using the average percentage mark based on the 105 best credits from 120 credits at level 5 multiplied by a weighting of 0.2 and the average percentage mark based on the best 105 credits from 120 at level 6 multiplied by a weighting of 0.8.

I have completed 4 modules which are 30 credits each. So how would the "best 105 credits" work? Would they use 3 full 30 credit modules and one 30 credits module and half it or use only one assignment? Or would they use the full credits as it is?

I'm quite worried since I've had an awful assignment from level 5 (which was 28%) and level 6 which is impacting my overall grade.

I would really appreciate it if anyone could help! Thanks.

As you haven't mentioned the university concerned, no-one can answer your question with any certainty. However, what they're likely to do is use the all 120 credits (i.e. all four 30-credit modules) by weight the worst module so its impact is halved. For example, if your four modules had been 60%, 60%, 60% and 50%. They'd probably establish the "average percentage mark based on the 105 best credits" as ((60%*30) + (60%*30) + (60%*30) + (50%*15)) / 105 = 58.5%.

Thank you for answering! I study at Kingston University so I don’t know if its the same at every university. I have emailed my personal tutor and I hope this is true. Thanks again!