A公司是电脑经销商,预计今年需求量为3600台,平均购进单价为1500元,平均每日供货量100台,每日销售量为10台
来源 :焚题库 2018-06-22
中参考答案:
(1)每次订货的变动成本=800+200=1000(元)单位变动储存成本=1500×4%+80+60=200(元)
经济订货批量=[(2×3600×1000)/200×100/(100-10)]=200(台)
送货期=200/100=2(天)
订货次数=3600/200=18(次)
(2)平均交货时间=8×10%+9×20%+10×40%+11×20%+12×10%=10(天)
交货期内平均需要量=10×3600/360=100(台)
再订货点=100+保险储备量
①当再订货点为100台(即保险储备量=0台)时
:平均缺货量=10×20%+20×10%=4(台)
TC(S,B)=100×4×18+0×200=7200(元)
②当再订货点为110台(即保险储备量=10台)时:
平均缺货量=10×10%=1(台)
TC(S,B)=100×1×18+10×200=3800(元)
③当再订货点为120台(即保险储备量=20台)时:
平均缺货量=0(台)TC(S,B)=100×0×18+20×200=4000(元)
根据上述计算结果可知,合理的保险储备量为10台,再订货点为110台。
(3)与批量相关的存货总成本=[2×1000×3600×200×(1-10/100)]=36000(元)
(4)与储备存货相关的总成本=36000+3800+3600×1500+100000+2000×12+40000=5603800(元)=560.38(万元)
English answers:
(1)Variable cost per order=800+200= 1000 ( Yuan)
Storage cost per unit=1500×4%+80+60= 200( Yuan)
Economic order quantity = [( 2×3600×1000)/200×100/(100-10)]=200(tai)
Delivery period= 200/100 = 2 ( day)
Times of order= 3600/200=18( time)
(2) Average delivery time= 8×10%+9×20 % + 10×40%+11×20%+12×10% =10(day)
Average demand in within delivery time=10×3600/360=100(tai)
Reorder point=100+ insurance reserves
①When reorder point is 100(insurance reserve= 0):
Average shortage=10×20%+20×10% =4(tai)
TC( S, B) =100×4×18+0×200 = 7200( Yuan)
②When reorder point is 110(insurance reserve= 10):
Average shortage=10×10% =1( tai)
TC( S, B) =100×1×18+10×200= 3800( Yuan)
③When reorder point is 120(insurance reserve= 20):
Average shortage=0(tai)
TC(S, B)=100×0×18+20×200= 4000( Yuan)
According to the calculation above, the reasonable insurance reserve is 10, reorder point is 110.
(3)Order related total cost of inventory=[2×1000×3600×200×(1-101100)]=36000 ( Yuan)
(4)Storage related total cost of inventory
=36000+3800+3600×1500+100000+2000×12+40000
=5603800(Yuan)
=560. 38(10 thousand Yuan)