I have created a dividend/company calculator. It is conservative.

I'd say that it's very likely that the model is pretty inaccurate after month 2, as it makes a lot of big assumptions.
If you'd like the file to modify parameters or double check my work, suggest a good place for me to upload it to. I know there was an active mining shareholder website that maybe lewicki made? For now, PM me your email address if you want this program.
I actually spent time on this it's dynamic and updates based off of changing the assumptions, donations are always welcome:
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