A quick tip about iTunes Payments and Financial Reports in iTunes Connect.
I was trying to reconcile from iAd Revenue to iTunes Payments. It looked like there were amounts missing in the Payments page. It took me a long time to realize this, but there is a dropdown to switch between your organization payment accounts. I probably have multiple payment accounts in iTunes Connect due to updating my address.
If you have multiple iTunes Connect agreements or accounts, you may want to check for a dropdown on the Summary page. I hope this helps someone out there trying to understand this part of iTunes Connect better.