title: Add % sign to UITextField programmatically
body: <p>I would like to know how to add a % sign to any number inserted into a UiTextfield so the user can be aware that it is a percentage similar to how $ or % signs work when setting cell types in excel.</p>
  
  <p>I have looked all over stack overflow but was wondering if there was any other way than appending a % using an observer.</p>