title: How to return a float between two numbers from a percentage
body: <p>I am really struggling to work this one out!</p>
  
  <p>If you have two numbers and a percentage, how can I return the float from the percentage point between those two numbers?</p>
  
  <p>ie.</p>
  
  <pre><code>Min = 9
  Max = 16
  Percentage = 45%
  </code></pre>
  
  <p>How do I return the float thats 45% of the way between 9 and 16?</p>