The "MIRROR"

Regardless what the “name” is, discount rate, rate of return, hurdle rate, cost of capital, …etc., I believe they do all represent the same concept (ignoring the other important factors such as growth for example) in practical business life which is the rate that I need at the end to get a proper “indication of value” to my concerned business regardless the sector, the stage, or at what side I am either a seller or a buyer...etc.