title: Remove all occurences of several characters from a string
body: <p>So I have a string that has numbers, letters and symbols in it like this:</p>
  
  <pre><code>AD 123 (+45) AS 6.7(+8%)
  </code></pre>
  
  <p>and I want all of the numbers in a <code>List&lt;double&gt;</code>. To do this I first want to remove all occurences of <code>'(', ')', '+'</code> and <code>'%'</code>. <br>
  My current approach is the <code>string.Replace()</code> method but that looks kind of dirty:</p>
  
  <pre><code>stats = stats.Replace("(", "").Replace(")", "").Replace("%", "").Replace("+", "");
  </code></pre>
  
  <p>Any alternative ideas? I don't want to just write code that works, I want it to be elegant.</p>