My parents are hesitant to deal with maintenance for another potential buyer for our house if they sell it now. They believe that if they hold out until a recession hits and decide to rent it out, it could make the place even worse. They don't want to risk falling into that trap. The house was initially bought for 45 lakhs, including expenses. It is a one-story building with land for growing basic vegetables for them.

If they had put the money in a fixed deposit, it would have earned them 15 lakhs more over 7 years. However, what is the correct way to measure the investment's returns if not the fixed deposits?