Google Spreadsheets has column charts but I want to use "draw Annotations" like this (Annotations). Column chart doesn't show bar value as "draw Annotations" on top.

My chart included these:

First Column: Sales Group,
Second Column:Number of product sold,
Third Column: Turnover

I found the code below but it doesn't work on my sheet.

 function getValueAt(column, dataTable, row) {
       return dataTable.getFormattedValue(row, column);} 
 function setLabelTotal(dataTable) {//dataTable must have role: annotation
 var SumOfRows = 0;   

 for (var row = 0; row < dataTable.getNumberOfRows(); row++) {
     SumOfRows = 0;
     for (var col = 0; col < dataTable.getNumberOfColumns(); col++) {

         if (dataTable.getColumnType(col) == 'number') {
             SumOfRows += dataTable.getValue(row, col);
         }
         if(dataTable.getColumnRole(col) == 'annotation')
         {dataTable.setValue(row, col, SumOfRows.toString());}
     }
 } }