This may be a problem with integer math truncation. Change your percentage value to a float or CGFloat instead of an int, and for all of your numbers write them like 100.0f instead of 100 to force C to treat them as floats instead of integers.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.