In the summary section Microsoft shows the "correct" formula while in the second section they show you a working example.
It seems the only "formula" you need to know is that you are taking the difference of two cells and dividing by one of them. You must include ABS.
:What type of solution were you looking for? In this example, you have to identify the numbers you are using. Wouldn't you have to do that in any formula?
Me and Khadija were looking for a built-in formula that can be used across all the work books in EXCEL instead of using cell-based variables (like in this example, B2 and A2).
There is a way of we can design and embed formula in EXCEL which is User Defined Function. But I was looking for more simpler option where I don't need to code anything.