title: one decimal for string format
body: <p>I have below digits. I want to show one digit after to decimal. How to format it?</p>
  
  <pre><code>2.85
  2
  1.99
  </code></pre>
  
  <p>I was using ("{0:0.0}". But data showing like</p>
  
  <pre><code>2.9 //It should be 2.8
  2.0 //It should be 2
  2.0 //It should be 1.9
  </code></pre>