【holmes069】評論
變動成本=400,000*0.4=160,000邊際貢獻率=(400,000-160,000)/400,000=0.6營業槓桿=(400,000-160,000)/150,000=1.6營業標桿又=(銷貨收入-變動成本)/NI---(NI+固定成本)/NI---(150,000+固定成本)/150,000=1.6---得固定成本=90,000損益兩平銷售額=90,000/0.6=150,000