Since we were talking about it in the other thread, I thought I'd post my findings in a new thread.
Below you'll find lots of pretty graphs and breakdowns of some trends in YA book deals. They're both from last year. I'll put the links at the end so you can check the posts out yourself because there is a lot more information in the text portions. Feel free to post links to anything you find or just general commentary. I know people tend to hate talking about money, but it is, at the very least, interesting to see how the numbers stack up.
Blah blah disclaimers about math not being perfect and not all information being available etc etc. The ones that specify genre should definitely be taken with a grain of salt because they're more indicative of trends than anything else and the time period has obviously passed. Also, the term "major deal" when used below means 500K or more.