I suppose it just depends on circumstance, I could claim its not fair that I, someone who got 100% has the same mark and same standing as someone who didnt work nearly as hard and just managed 80, or I could say its not fair at the very margin, by sheer luck someone managed a 80 and this may or may not be a rare occurrence, I missed by 1% consequently I get a significantly lower mark. Nevertheless I agree that its not fair that due to a few easy breadths students now have incentive to not work as hard, I still find that despite any system, students who usually score high will, regardless, and the opposite too, it seems the %s system works out better In unfavourable cases, were the GPA calc. system wouldn't be as effective