As far as I have been able to see from previous jumps, a few sales (like 1 or 2) can cause a big job. Admittedly that's lower down, but it might be worth running those jumps against sales numbers when they become available.
That's on my to-do list. @Nick Sumner and @NickP and @Skinny87 remember though, we can't run the numbers until the gross sales sheet comes in. If you have any questions, the thread from the last time I did calcs should still be up. Just don't get too hyped up, because there are notable delays for those of us actually working the Amazon Mines.