> it doesn't matter how they are financed If you have spherical banks in a vacuum, you can simply follow "capital_opex = capex * interest_rate" and then "profi

> it doesn't matter how they are financed If you have spherical banks in a vacuum, you can simply follow "capital_opex = capex * interest_rate" and then "profit = revenue - total_opex". But things tend to not work that way on practice.