Does Apple charge 15% for each dollar up to a million plus 30% for each dollar above a million, or when you cross a million (in a year), do they suddenly jump to 30% of everything? IOW, if I have earned $999,999 so far this year, I have to pay Apple about $150,000. If I then make another $1 sale, do I owe a few cents more or another $150,000?

And once your rate goes to 30%, does it stay there the following year, or does the whole system reset to zero each year?