正确答案:B |\}f)Xp-
答案解析:甲、乙、丙三种产品的边际贡献率分别为: xw?G?(WO
甲:[(30-20)/30] ×100%=33.33% ~" $9auQtC
乙:[(25-15)/25] ×100%=40% Kfj*#)SZ
丙:[(22-11)/22] ×100%=50% -7+Fb^"L
各产品的销售比重为: esLY1c%"/
甲:[30×1000/(30×1000+25×5000+22×300)] ×100%=19% DPe`C%Oc1
乙:[25×5000/(30×1000+25×5000+22×300)] ×100%=77% bUqO.FZ[
丙:[22×300/(30×1000+25×5000+22×300)] ×100%=4%
=,?@p{g}
加权平均边际贡献率=33.33%×19%+40%×77%+50%×4%=39.13%。