A KH make-over suggests they wanted to sell it but something is preventing it. So they get the cong to donate funds for a make-over.
They did a similar thing with the chairs at, what was, my KH, until I was thrown out for saying the number 19 is followed by the number 20, not the number 2. Maybe they want to standardise maths with their own particular order of numbers with newly assigned values.
My maths teacher became a Watchtower user. When I tried to point at the anomalies to her she became indignant and said if I carried on like this I would stumble her out of the truth.