Calculate my final year grade

So I am thinking about what grade I would end up with once my degree is completed.

My second year of University is worth 25% of the final degree, I have achieved only 56% overall.

My third year is worth 75% of the overall degree and I am wandering what percentage should I get in my final year to get 2:1 classification?

Can anyone do the maths, thanks in advance.

Complicated Request:

If anyone can answer this I'll be amazed and seriously grateful...

Second year counts for 30% of entire degree
Final year counts for 70%

Averaged approximately 50% second year

Question is, if I got a good first (70%+) in my dissertation which is worth 30% of my final year grade, what would I then need to average in my final exams to get a first overall?

Thanks

Hey if anyone could help I'll be thankful
My second year of uni is worth 25% and i achieved only 49% overall.
My third year is worth 75% of the overall degree and am wondering what do I have to get in my final year to get 2:1 at the end.
Thanks

Lol I think I should make an app for this calculation

I just found out I got 55% in second year worth 22%, I have a 4 year course and my 3rd year is worth 33% and final year is worth 55%. So can someone help calculate what I need in the next

two years go get a 2.1 and if it's possible? Thanks.

My second year is worth 30% and my final year is worth 70% for my final degree.I got 70% overall in my second year so what percentage do I need in my final year to get a first class degree?

Isn’t a first class 70%? So you would need 70% again

It is but because the weightings of each year are different (30% and 70%) I didn't know if it would be different