设商品总数为1,现价为X,则实际利润为:0.7*500+0.3*(x-1000)=50+0.3x,预定利润为*500
0.7*500+0.3*(x-1000)=*500*0.82,
解得X=1200元,(1500-1200)/1500*100%=20%.
答:降价时,把定价降低了20%.
设商品总数为1,现价为X,则实际利润为:0.7*500+0.3*(x-1000)=50+0.3x,预定利润为*500
0.7*500+0.3*(x-1000)=*500*0.82,
解得X=1200元,(1500-1200)/1500*100%=20%.
答:降价时,把定价降低了20%.