Calculating igcse percentage

Hii

Ive heard that your grades are sometimes turned to a percentage- or in unis abroad to a SAT score or smth like that? How is that done?

Also if i get say a 9- does it matter what the percentage is? Like say if grade 9 starts from 85%, does it matter whether its 86 or 93 percent? Does the uni know the percentage or just the grade? I take edexcel igcse if that helps.

Grades are not turned into a percentage, not can they be. A given grade is awarded by having a mark which meets or exceed one grade boundary but which doesn't meet the next grade boundary. Those grade boundaries can be converted into percentages. Say, for example, a particular exam has two papers, each with 100 marks. So your total mark is out of 200. If a given student scores 150 out of 200 marks (75%), and the grade threshold for a grade 8 was 140 marks (70%) and for a grade 9 was 160 marks (80%), then we can say that this student achieved a grade 8. However if we know that a given student achieved a grade 8, we only know that they obtained between 140 marks (70%) and 159 marks (79.5%). There's no way to establish the percentage, or the mark, from just the grade.
Where did you hear that "your grades are sometimes turned to a percentage"?
Nope. It's the GCSE/IGCSE grade which is important and it is the grade which universities receive (because you tell them via your UCAS form).
One exam board might set a slightly easier paper than another exam board one year - so those marks will be higher as a result. In which case they adjust the grade boundary up to compensate - so you need to get a few more marks on that slightly easier paper to obtain the same grade. This is essentially why grades exist - to allow for differences in the difficulty of papers between years and between exam boards. A given student should receive the same grade regardless of in what year they happen to be or what exam board their school happens to have chosen.

Oh ok thank you! A few of my friends were saying that and then my parents said there was no way 85 percent and 100 percent would both get grade 9 so i just wanted to make sure.