ok, so what an employer must now do is factor in that a grade C in year X is the same as a grade B in year Y. Do employers get a chart to show the degree of difference in difficulty year on year. Or could a grade E be the same as an A depending on the year. Just a thought.
But if an employer was looking specifically for good maths results rather than social media, they would only be looking at the maths percentage not anything else.
Why is it we need a pass/fail or ABCDE or 1-9 or 9-1 rating? Why not just mark the paper, give a percentage for the correct answers etc. Therefore 78% will be better than 56% and 31% etc. Employers would then know exactly how well anybody did in any given exam. Simples.