what percentage equals what grade at GCSE?

[ucannotbserious]

I know that this probably differs quite a bit but does anyone know what GCSE grades relate to what percentage?

This is impossible to answer because it is different for every subject. This is made more complicated because the percentage changes almost every year for every subject.
You need to look at the exam boards' websites to see what the percentages were most recently.

Grade boundaries are assigned after all the papers are marked.

Roughly, expect 80% for A*, 70% for A, 60% for B, etc.

I'm pretty sure 50% is C, which probably fits in with MmeBlueberrys percentages

Absolutely impossible to say. Grade boundaries will differ widely a) between subjects and b) from year to year even within a subject.

Isn't the correct answer multiple choice?