Maths. In order to come to that conclusion, you will have had to make more than one calculation. Though I know it was a gag, my dry personality won't let it go. You "do the math" if you're American or Canadian.
Although you could well be, in which case ignore me.
Back on topic, maybe we spend a little more to build on what we've got. The oddities I can see happening are either that Lerner shows he's done and sells up, or even more bonkers, pulls out the North Stand redevelopment that never happened.
I am English but lived in the USA for 20 years. My words get all confused