Okay, got some exam results but cannot for life of me work out what average im on.

last year was worth 25% of the degree. I got an average of 63%

This year is worth the remaining 75%. the year is spread into 120 credits. so worked out each 1 credit is worth 0.625% of my degree.

I've got 50 credits back and got average of 68.6%

Basically now need to work out what average i've got for my degree so far. I think i've now got results back for 56.25% of my degree.

Any help appreciated