I really don't think it would be wise to give proper examples, it would kind of negate the point of the exercise. Lets just say pretend you have a certain amount of a currency. Convert that currency into another, then that amount into another.
Trust me - the Maths is nothing to worry about
Oh, and with respect to your second point I don't think they are sending pilots to Ryanair as they are not a partner airline but I stand to be corrected