Ah, now I understand.
Thank goodness, I'm done with math... I must not have studied hard enough. :rolleyes:
I was just adding the values, thinking that the sum would give 40%, but it turns out that you first need to consider the first value, and then calculate the second 20% from the new result... I was taking both into account at the same time... If you do it sequentially, then yes, it's different...
And has it been confirmed that it's calculated sequentially, and not all at once?