Removing decimals in word

Hi,

I'm currently working on a form using order products from Salesforce. The order product doesn't allow the removal of decimals in SF, so I am trying to remove them per the customer's request in the proposal document we are creating.  I've found reference to round(), but can't find directions on how to use the runtime functions in my situation.  An example of my tag is <<OrderItem_TotalPrice>>.  Is there a way to add a function to remove the decimal and have the result be only the whole number? 

I appreciate any help!