I am not sure if it might be helpful to better highlight which numbers are changeable and which numbers have formulas.
What about this?

All the cells that need to be edited are highlighted in Green.
Every other format is directly computed from those green cells cells.
Settling a unique format for the cells to be edited can be a nice idea, even more if this is coherent across the various spreadsheets.
Yes. That does look better in terms of highlighting that the green fields are the ones in which data would be entered, and then
Viola!!!!! The spreadsheet will do the remainder of the calculations based on what is put into the green input fields.. although the labels are not input fields.. #justsaying.. hahahahaha
I just edited the labels as per your suggestion!
And
Voilà!!!!! Now the spreadsheets updates automatically when you enter the numbers in the green cells.
I can’t wait to see the final website.
Even if I have a concern: if you want to play with those hypothesis, you might want to come back multiple times.
Coming back multiple times call for some sort of registration: but is this privacy friendly? Thanks for the spelling lesson.. yet I am not sure if i understand the reference for coming back multiple times and a potential triggering of registration? Is that referring to the creation of a website, and attempts at monetization? because there are a lot of bitcoin related sites that allow playing around and manipulating of data, but no need to register. Or are you referring to google spreadsheets?
There is a kind of spirit of open source in bitcoin, and sometimes even opens source can be monetized, even though at the same time, there can be areas of discontent because more sophisticated (or better marketers) could end up taking open-sourced ideas and then just creating their own version, which may or may not end up being better than the original variation.