jQuery animate and property values in percentage

Question

I trying to animate a div and I try to use some value retreived somewhere else, I know the value to be correct because I\'ve printed out the output... so I\'m wondering why

Answer 1

This is pretty old, but this way is working for me:

wthSelected = 85;
$(this).animate({
    width:wthSelected+'%'
  }, 1500); 

Also i'm using jquery-1.11.2.min.js and jquery.mobile-1.4.5.min.js