Thank you for finally laying this out. Now the internal logic at least makes some sense (although I still don't get the larger logic for what makes this information meaningful, other than that this is the way it is done).
Two things baffle me about how Turbotax treats this. One is that Turbotax already has all of the needed information. It is not clear to me why it asks us to perform calculations that it can do on its own.
The other puzzling thing is that Turbotax makes no effort whatsoever to explain these calculations or to tell us that it expects us to perform them. It is very frustrating for people like me who thought that the whole idea of Turbotax is that we input information and it performs the calculations.
