Here are the UPS brokerage fees:
http://www.ups.com/content/ca/en/shi...clearance.html
Keep in mind that GST/HST gets charged in addition to that, so for a $100 item it'll be about $34 in brokerage and taxes ($29 brokerage and $5 GST). So if the item and shipping totals $258 you're looking at a little under $300 total.