[Solved]-How to display highchart y axis with constistant data-Highcharts

If you are using thousands and millions in one chart, check this out.

yAxis: {
    labels: {
        formatter: function () {
            if (this.value.toFixed(0) >= 1000000) {
                return '$' + this.value.toFixed(0) / 1000000 + 'M';
            } else {
                return '$' + this.value.toFixed(0) / 1000 + 'K';
            }
        }
    },
    title: {
        text: ''
    }
},

For Converting your yaxis values into 1k,2k,3k,4k,etc:

yAxis: 
{
    labels: 
    { 
      formatter: function() 
      {
         return Math.round(this.value/1000) + 'k';
      }
    }
},