It was just released yesterday and I've only sold a few copies -- so not much to report on the overall revenue front yet!
In terms of the profit margins though, Amazon KDP lets you choose the sale price for each region, and they take a royalty and deduct the printing cost.
This book costs $3.65 USD to print (which I believe is on the high side...I'm making it available as a largish 8.25x8.25", on glossy paper). I'm selling it for $8.99 in the US. Amazon takes a 40% cut. At first glance I thought this would mean I get a royalty of (8.99-3.65)0.6 = $3.204 per copy; but, alas, it's actually calculated as (0.68.99)-3.65= $1.744 per copy.