甲衣服成本价60,盈利20%,售价=60*1.2=72元乙衣服成本价70,亏损21%,售价70*0.79=55.3元所以整体成本60+70=130元整体售价=72+55.3=127.3元整体亏损=127.3-130=-2.7元亏损比例2.7/130=2.08%