正确答案:B 0%9 q8M;
答案解析:甲、乙、丙三种产品的边际贡献率分别为: nhB1D-
甲:[(30-20)/30] ×100%=33.33% #I{h\x><?
乙:[(25-15)/25] ×100%=40% T*8VDY7
丙:[(22-11)/22] ×100%=50% \\PjKAsh
各产品的销售比重为: T6O::o6
甲:[30×1000/(30×1000+25×5000+22×300)] ×100%=19% \\r)Ue]
乙:[25×5000/(30×1000+25×5000+22×300)] ×100%=77% s:>VaGC
丙:[22×300/(30×1000+25×5000+22×300)] ×100%=4% Y>|B;Kj0(
加权平均边际贡献率=33.33%×19%+40%×77%+50%×4%=39.13%。