Sanity checks your customer rotation!

Hi all,

I have made a free tool to help the subscription stores understand the rotation. The idea arose when listening to a friend talk about how contradictory it can be. The tool shows the enormous effect that small changes in turnover can have on income and growth.

It's fun to play with numbers and see the effects that small changes can have for your business.

Right now it's basic, but I hope to add some more features.

Any ideas or comments are always welcome!