I can't answer for Amazon because it isn't allowed in my state, but I can see for eBay. Here's how to see eBay results; I'm assuming something similar is true for Amazon:
1. In the top, main menu bar, click your name and select, "my earnings". The "Earnings Reports" page appears.
2. In the 4th menu from the top (the one in which the "Earnings Reports" tab is currently highlighted), click eBay Sales Reports (in your case, Amazon Sales Reports is hopefully also an option). The "eBay Revenue and Sales By Hub" (Amazon, in your case) tab appears.
This page contains all kinds of useful information and does show the dollar amounts and specific products sold per hub (scroll down for full details).
I THINK (smarter people, please correct me!!) that if someone clicks on your product link and eventually, that same session, buys something else you still get credit for that, so that could account for the sales of unrelated products, if I'm remembering something I read correctly. The forums mentioned something about that one time, but it's hard to find so be patient in your research if your question isn't fully answered by my answer or others' answers to your question.