SolarWinds

Hi All, I am inquiring about the formulations for both soiling and shading. I was hoping to supplement some additional shading to my array by adding to the soiling loss. My question is will an increased soiling loss be used to compensate for additional shading (without building a shading scene)? Would a 1% increase in soiling provide the same results as a 1% increase in shading? Any help is appreciated.