[Solved]-How to add a label above each bar in HighCharts-Highcharts

add this to your series:

dataLabels: {
    enabled: true,
    rotation: 0,
    color: '#000000',
    backgroundColor: '#FFFFFF',
    align: 'center',
    x: 4,
    y: 0,
    style: {
        fontSize: '10px',
        fontFamily: 'Verdana, sans-serif'
    }

of course adjust as needed.. you can also add a formatter to add $ sign and commas for large numbers if you need it..

EDIT:
just saw it was bar chart..
you will need to add this to your plot options:

plotOptions: {
   bar: {
      dataLabels: {
          enabled: true
      }
   }
},

check out the bar chart demo as well as their api documentation