GS_raw = wS×(Shares/Reach) + wC×(Comments/Reach) + wK×(LinkClicks/Reach) + wSv×(Saves/Reach) + wE×(Reactions/Reach) + wI×(I_other/Reach) + wR×r GS = GS_raw × Scale(預設 1000)
GP_post = round( (GS / Scale) × Reach × g_aud ) 其中 g_aud:受眾加權,依 Non-followers % 調整(預設 ±10%)