This professional simulator requires the blue fields to be filled in to function correctly. The only fields that may not be filled in are those relating to the loan/mortgage.
It is very important to set a time horizon, with a duration greater than or equal to the duration of a possible bank loan, so that the calculator can work correctly in calculating the bank leverage effect.
It is also essential to set an estimated value of the property at the end of the period, so the simulator will be able to calculate not only the rental returns but also the returns due to the revaluation or devaluation of the property.