Click the green flag and watch the two numbers, the top one being the second number, the bottom on the first (biggest). If you don't know what the Fibbinaci Sequence is, here's a quick rundown: You start out with two numbers, 1 and 1. Then you add them together. You get 2, and swap the first number to that and leave the second alone. Then you add 1 and 2 to get 3. You now swap the second number to the first numbers current number, which is 2, and swap the first number to the sum, which is 3. You do this forever, or for as long as you like.
I used the Fibbinaci sequence, and nobody's project. The background is the sum, divided by the amount of created numbers, divide that by 100, round it, and multiply by 100. for fun.