I of course understand that B.G, and presuming based on a .5% increase in inflation was passed on by a .5% increase in the interest rate to 9.5% the total interest payable would only increase by $31k over the 25 years
Its all to pie in the sky to get exact. Using the past historical averages of the last 25 years however
Inflation rate 3.84% and interest rate of 9.89% would result in
Cap gain: $769k less $300k = $469k Interest expense: $510k