title: Simple HTML calculator using Jquery
body: <p>I need to have a simple calculator that you just change one number and it multiples the value but a number </p>
  
  <p>i.e. if you switch the number from 1 to 3 the below happens. the value can be a text box and the others can be labels</p>
  
  <pre><code>number to buy   1   
      $175.00 YR 1
      $187.50 YR 2
      $212.50 YR 3
      $225.00 YR 4
      $237.50 YR 5
  
  
  
  number to buy   3   
      $525.00 YR 1
      $562.50 YR 2
      $637.50 YR 3
      $675.00 YR 4
      $712.50 YR 5
  </code></pre>