League Scoring Change (1 Viewer)

My league of many years has implemented a scoring change in favor of the RB position. I am trying to figure out a way to go back for the last few years and apply that scoring system into past statistics and see how drastically it would change the rankings. Does anyone have a way to easily do this or is downloading the raw data and excel really the only way to go here?

Has anyone else run into similar problems and how do you analyze the changes other than just punching the new scoring system into Draft Dominator?

Thanks