甲公司整體利益觀點,僅比較轉撥6,000單位與轉撥20,000單位
假設組裝部門對外售價為P,移轉訂價為TP
若螢幕部門轉撥6,000單位至組裝部門
螢幕部門利潤
=14,000×($120-$70-$8)+6,000×(TP-$70)
=6,000TP+$168,000
組裝部門利潤
=20,000×P-14,000×($120+$7)-6,000TP
=20,000P-6,000TP-$1,778,000
合併利潤小計
=(6,000TP+$168,000)+(20,000P-6,000TP-$1,778,000)
=20,000P-$1,610,000
若螢幕部門轉撥20,000單位至組裝部門
螢幕部門利潤
=20,000×(TP-$70)
=20,000TP-$1,400,000
組裝部門利潤
=20,000×P-20,000TP
=20,000P-20,000TP
合併利潤小計
=(20,000TP-$1,400,000)+(20,000P-20,000TP)
=20,000P-$1,400,000
轉撥6,000單位與轉撥20,000單位利潤差異
=(20,000P-$1,610,000)-(20,000P-$1,400,000)
=$(210,000)