Well this is a difference between an A and a B. Or rather it's the difference between an AAA and an AA+, because grade inflation in the credit rating world is even worse than grade inflation in academia.
But there's a logical flaw here. Even if there was an error in the initial calculation, that doesn't mean that the end result should be different. You can show me that you actually got 81% rather than 80% if you like, but that's still a B.
But there's a logical flaw here. Even if there was an error in the initial calculation, that doesn't mean that the end result should be different. You can show me that you actually got 81% rather than 80% if you like, but that's still a B.