Percentage of echarts-displayed

For use Echarts to display a percentage, change two places, the first place when the axis is displayed as a percentage of the format, the second is to let the value in the form of a percentage, such as 50, shown on the graph above 50%.

YAxis: [  
        {  
            type: ' Value ',  
            axislabel: {  
                  show:true,  
                  interval: ' Auto ',  
                  formatter: ' {value}% '  
                },  
            show:true  
        }  
    ],  

The second one is to change the series

  ItemStyle: {  
                normal: {  
                    label: {  
                        show:true,  
                        position: ' Top ',  
                        formatter: ' {b}\n{c}% '  
                    }  
                }  
            },