How to set up Tariffs for Sales Orders

We need to be able to charge tariffs on the sale of certain items into China. Can anyone point me to documentation on how to do this? Thanks in advance for assistance!

@Kyle Robinson Can you explain further how you did this? I tried using the Free Goods option using an item named Tariff as we would like to see the tariff as a separate line on the sales order. It will only let me do an add on amount and not a percentage though.

@Sherry Alexander We're working through this as well. We use Advanced Pricing, so we created a new adjustment that will be inserted into every pricing schedule. The adjustment definition includes all of the parts impacted by the tariffs and the GL code on the adjustment let's us break off the revenue via DMAAI so we don't treat it as straight sales.