在叠加条形图中，Echarts3.0在y轴上显示百分比。

Using Echarts3.0 in Vuejs2.0 component, I am trying to assign percent on y-axis in a stacked bar chart. I tried boundaryGap, splitnumber, etc, but none of them worked. But i cannot achieve it, Anyone has idea how can i get % on y-axis?Using Echarts3.0 in Vuejs2.0 component, I am tr