正确答案:B
W=zHD
9
答案解析:甲、乙、丙三种产品的边际贡献率分别为: /2 V
甲:[(30-20)/30] ×100%=33.33% AlZ]UGf^
乙:[(25-15)/25] ×100%=40% zfS0M
丙:[(22-11)/22] ×100%=50% .gZ1}2GF=
各产品的销售比重为: TVy\%FP^L
甲:[30×1000/(30×1000+25×5000+22×300)] ×100%=19% p'SclH[
乙:[25×5000/(30×1000+25×5000+22×300)] ×100%=77% 9j'(T:Zs
丙:[22×300/(30×1000+25×5000+22×300)] ×100%=4% L\)GPTo!x
加权平均边际贡献率=33.33%×19%+40%×77%+50%×4%=39.13%。