It's curious that the USA has effectively standardized on a 4 point GPA scale, yet Australia is still a complete catastrophe of marks. The universities in my city use a 7 point scale with 4 being a pass and 7 being 100%, meanwhile the one 100km south will use an American scale.

https://en.wikipedia.org/wiki/Academic_grading_in_Australia

I actually don't know whether it would be more appropriate when conveying my marks to those in other countries to convert, or to just explain the scale.