title: Set a Column in Pivot Table as Percentage of Another
body: <p>How can make a column to be a percentage of another column in pivot table? For example, in the following.<a href="https://i.stack.imgur.com/tCLNN.png" rel="noreferrer"><img src="https://i.stack.imgur.com/tCLNN.png" alt="enter image description here"></a></p>
  
  <p>I want set the second column as the following percentages <code>1/1</code>, <code>44/46</code>, <code>459/465</code> etc. For the third column, I want it to appear as the percentages 
  <code>1/1</code>. <code>41/44</code> and so on.</p>