MONEY MATTERS - THE MAD MATHEMATICS OF ROYALTIES

Every now and then laziness overcomes me. Luckily, this usually happens when someone has just done something so clever and useful that the most clever and useful thing I can do is tell you about it and then go back to sleep.So, if you have ever wondered about the maths (or math, for you over yonder ocean) of royalties and advances and foreign rights and returns and all sorts of other bogglingness