title: Apexcharts - How to change the y-axis step size value and tooltip not showing string
body: <p>I am using <a href="https://apexcharts.com" rel="nofollow noreferrer">apexcharts.js</a>. I am using the below code on my page. I have two issues</p>
  <ol>
  <li>How to change the y-axis step size value? As of now, it's talking 20.</li>
  </ol>
  <p><a href="https://i.stack.imgur.com/HYaYt.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/HYaYt.png" alt="enter image description here" /></a></p>
  <ol start="2">
  <li>In the tooltip, I am not getting the string. It's only displaying the number.</li>
  </ol>
  <p><a href="https://i.stack.imgur.com/gOLME.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/gOLME.png" alt="enter image description here" /></a></p>
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>var options = {
    series: [{
      data: ["30 lac", "40 lac", "35 lac", "50 lac", "49 lac", "60 lac", "70 lac", "91 lac", "125 lac"]
    }],
    chart: {
      height: 350,
      type: 'bar',
      events: {
        click: function(chart, w, e) {
          // console.log(chart, w, e)
        }
      }
    },
    //colors: colors,
    plotOptions: {
      bar: {
        columnWidth: '45%',
        distributed: true,
      }
    },
    dataLabels: {
      enabled: false
    },
    legend: {
      show: false
    },
    xaxis: {
      categories: [10, 20, 30, 40, 50, 60, 70, 80, 90],
      labels: {
        style: {
          // colors: colors,
          fontSize: '12px'
        }
      }
    },
    yaxis: {
      min: 0,
      max: 200
    }
  };
  
  var chart = new ApexCharts(document.querySelector("#chart"), options);
  chart.render();</code></pre>
  <pre class="snippet-code-css lang-css prettyprint-override"><code>#chart {
    max-width: 650px;
    margin: 35px auto;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div id="chart"&gt;&lt;/div&gt;
  &lt;script src="https://cdn.jsdelivr.net/npm/apexcharts"&gt;&lt;/script&gt;</code></pre>
  </div>
  </div>
  </p>