I have three books available in paperback through Amazon. So far, I have sold 8 copies and this morning my sales report hit. My commission is a whopping 21 cents because they were purchased from amazon. When this happens, Amazon and Createspace both get over the lion's share leaving you pennies. You must create a link directly to your estore to make a purchase. Had the same 8 books been purchased from my estore my commission would have been $53.44.

they just don't tell you these things.