Printing support method for estimating performance according to predetermined derivation rules

A plurality of registration data includes control parameter data related to control of an image forming apparatus capable of executing a printing process. A processor, according to input designation information, selects target registration data from the plurality of registration data. Moreover, the processor derives estimated performance according to derivation rules. Furthermore, the processor outputs information about the estimated performance. The estimated performance is performance related to the printing process in a case where it is presumed that the printing process is executed according target parameters. The target parameters are the control parameters of the target registration data.