ext3.0纵坐标怎么弄成百分比

[benz517]

var store = new Ext.data.JsonStore({
fields:['name', 'visits', 'views'],
data: [
{name:'Jul 07', visits: 245000, views: 3000000},
{name:'Aug 07', visits: 240000, views: 3500000},
{name:'Sep 07', visits: 355000, views: 4000000},
{name:'Oct 07', visits: 375000, views: 4200000},
{name:'Nov 07', visits: 490000, views: 4500000}
]
jsonStore 数字都是整数或者浮点数，加不进百分号，怎么解决请指点

[benz517]

问题已解决，一上来就来有灵感