假设甲原股为1,则a为1加0.25=1.25;
a=1.25是后来卖出的乙股,
则原乙为a加(a乘0.25)=1.25+1.25×0.25=1.5625;
甲股盈利0.25,乙股亏损0.3125(0.25a=1.25×0.25)
甲股盈利0.25<乙股亏损0.3125
所以用乙亏0.3125-甲盈0.25=0.0625.亏了!
假设甲原股为1,则a为1加0.25=1.25;
a=1.25是后来卖出的乙股,
则原乙为a加(a乘0.25)=1.25+1.25×0.25=1.5625;
甲股盈利0.25,乙股亏损0.3125(0.25a=1.25×0.25)
甲股盈利0.25<乙股亏损0.3125
所以用乙亏0.3125-甲盈0.25=0.0625.亏了!