A management system which includes an image forming apparatus having a plurality of functions, and a management apparatus which manages the image forming apparatus, the management apparatus comprises: a power consumption acquisition unit which acquires information of power consumptions for the respective functions of the image forming apparatus; a supply power acquisition unit which acquires information of a supply power to be supplied to the image forming apparatus; a determination unit which determines a power consumption value to be consumed by the image forming apparatus based on the information of the power consumptions for the acquired respective functions and the information of the acquired supply power; and a setting unit which sets a power consumption of the image forming apparatus to be operated at the determined power consumption value.