A management server performs a process including: in response to receiving a request to display a selection screen, acquiring vehicle body information and displaying a selectable vehicle type; in response to receiving vehicle type selection information, specifying a selected vehicle type, extracting a compatible battery, calculating an estimated range, extracting a performance-unachieved battery, and displaying a selectable battery and the performance-unachieved battery; and, in response to receiving battery selection information, calculating a sales fee and displaying the sales fee.