25% 设定价为X X*90%=60+7.5X=75利润为75-60=15 15/60=0.25所汪历以是按25%为定价袜陵颂的告郑
7.5÷90%=8又3分之一元信裂8又3分之滑哗闭一÷60=36分之5 约13.9%13.9%芦尺+1=103.9%
25%(60+7.5)/90%=75(75-60)/60=25%
15.15%
25%(60+7.5)/0.9=75(75-60)/60*100%=25%