Thank you for the prompt and thorough response.
I’m afraid I don’t understand the rental maths. It seems you are currently paying ~$240K in annual rent, but that will decrease to ~$130K in your new premises, less any rent charged on the sub-let.
If the business owns the premises, why are you paying any rent in the new digs?
What is the cost to service the $800k mortgage on the new office space?