如何求沪深300指数2012-2013的月收益率?

沪深300指数2012至2013的月收益率可以通过同花顺软件的月周期k线获得。

2012.01:5.05%

2012.02:6.89%

2012.03:-6.80%

2012.04:6.98%

2012.05:0.22%

2012.06:-6.48%

2012.07:-5.23%

2012.08:-5.49%

2012.09:4.00%

2012.10:-1.67%

2012.11:-5.11%

2012.12:17.91%