title: Woocommerce decimal quantity
body: <p>can you help me to find a way for use decimal value like 3.56 for quantity in woocommerce ?</p>
  
  <p>in calculate price quantity number convert to Integers value but i need price calculate with Values that the user has inputed</p>
  
  <p>i am working with woocommerce 2.2.8</p>