2008꿼Դÿһ(229)

ij˾2003й£
1˰Ϣǰ800Ԫ
2˰˰40%
3ܸծ2000ԪΪծȯƽϢΪ10%
4ͨɵʽɱΪ15%
5ͨɹ600000ɣÿֵ1Ԫȹɣ
6ȨΪ11/6
ù˾Ʒг൱ȶԤھȫڷŹٶƱ۸ڼֵȡ
Ҫ󣺪
1ù˾ÿ桢ÿɼ۸
2üȨƽʽɱ
3ù˾400ԪĸծʹծܶΪ2400ԪԱм۸¹عƱعƱȡٶٴ뽫ʹծƽϢ12%ͨʽɱ15%ߵ16%˰Ϣǰ󱣳ֲ䡣ʸù˾ӦıʱṹʾԹƱ۸ߵб?
4ù˾ʱṹıǰѻϢ

ȷ𰸣
1Ϣ˰ǰ800
Ϣ2000×10%200
˰ǰ600
˰40%240
˰360Ԫ
ÿ=360/60=6Ԫ
ڸù˾Ʒг൱ȶԤھȫڷŹԣÿ=ÿɹڹ̶Ʊ
ÿɼ۸=ÿɼֵ=6/0.15=40Ԫ
2Ȩ=ծ/Ȩ=ծ/Ȩ-1=2400Ԫ
Ȩƽʽɱ=10%×2000/2400+2000×1-40%+15%×2400/2400+2000=10.9%
3Ϣ˰ǰ800
Ϣ2400×12%288
˰ǰ512
˰307.2Ԫ
ع=4000000/40=100000ɣ
·ɷ=600000-100000=500000ɣ
µÿ=3072000/500000=6.14Ԫ
µĹƱ۸=6.14/0.16=38.38Ԫ
ˣù˾Ӧıʱṹ
4ԭѻϢ=800/200=4
ѻϢ800/2400×12%=2.78
֪ʶ㣺