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, 2 ,2 , 磬 ,磬10%,1.,磬, 20%,20%,壬35%.,1 2, = = % = = % = =( )% = = %,10,30,45,85,350壬,3501-25% =350 0.75 = ,262.5,262.5,2,350-35025% =350-87.5 = 262.5 (,2,1İ11()1,2012150002011,150001+20% =15000 1.2 =12500 𣺸201112500 ,1.2.8,2.81+30% =2.8 1.3 =3.64 3.64.,塢,21.33,1.31+30% =1.3 1.3 =1 1.,塢,塢,
