HMRC is unable to provide specific or tailored advice through the Online Community Forums and cannot comment on any form of calculation, example or scenario as we may not be in possession of all the relevant information.
The HMRC Customer Forum is for general queries only and is intended to help our customers self-serve. We are unable to provide financial advice or further interpretation of the guidance provided on GOV.UK:Work out your rental income when you let property - GOV.UK
Customers with more complex enquiries often engage the services of a professional advisor or accountant and this may be something you wish to consider.