title: How to round decimal places in swift 2
body: <p>Trying to output the total of three number values from a dictionary and then adding HST of 13% to the total. However, the calculations print out as <strong>$13.5261</strong> with four decimals places. How do I cut out the end decimal places, so it's $13.52? Or is there a way to round it, so it's $13.53 </p>
  
  <pre><code>import UIKit 
  
  
   var menu = ["Coke": 1.99, "Coffee": 3.99, "Water": 5.99]
  
   var hst = 1.13
  
   var total = hst * (menu["Coke"]! + menu["Coffee"]! + menu["Water"]!)
  
  
   print("The total for your order is
   $\(total)")
  </code></pre>