its usually a couple hundred for the bags over 1k, and usually around 100 for under 1k from my experience it can be anything from a 10% to 20% increase.
when is the next price increase? or rumoured to be? I'm going overseas end of march so I could probably get my 10% tax back, but it might not be worth it with the price increase!
there are several threads on the rumors of this years price increase if you do a search, unfortunately it can be next week to the next two weeks as least as rumors dictate