;Set the lable format as % for secoudry Y axis chart.ChartAreas(strChartArea).AxisY2.LabelStyle.Format = "P0"
chart.ChartAreas(strChartArea).AxisY2.LabelStyle.Format = "{0:0}%"
var
This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)