In the last few weeks the pound has gone down against most currencies. This makes UK exports more competitive, but imports dearer. Against the US Dollar the rate is $1.2244 to £1 currently. The world fears a "hard BREXIT" from the EU. My own view is the EU did not want the UK to leave as it needed us to prop up the (failing?) institution. I think the Euro will weaken a great deal in the next 18 months or so. I am no expert though!
In the short term we are likely to see higher UK prices (inflation) and a bettering of our trade deficit. Many EU nations will need our trade in the future. If we depend less on finance and make more, that would not be a bad thing.