The total sum of money, which Apple earns from every sold iPhone
was estimated at $831. According to the Financial Accounting Standards Board, Apple receives $18 a month from AT&T for each iPhone customer, which makes $432 for two year contract. Including the device’s price ($399), that makes $831 for each of the famous music-phone. Specialists estimate the iPhones hardware at about $250, which indicates $581 (or ~230%) profit for each one sold by AT&T.
source and image courtesy of: Gizmodo