"Kinana; Rentals are based on market forces. If demand is low or supply is too high, the rentals will automatically fall.
Your insipid one liners failed to address the type of market structure and system from which the it resides. Is it a Lee Market system, perfect, monopolistic or oligopolistic? Demand and supply are economics theories. Theories based on Keynesian and you can read econ books by Prof. Lim Chong Yah to get a better understanding before cumming out with simpleton one liners.