Fake news.
This handy Brexit cost calculator only makes it half of that £150 billion so far, although it doesn't take into account some of the lost revenue costs. Roughly it's costing £727 per second aka £439 million a week.
Although I like the graphics which say that with the money we've wasted on Brexit so far...
* We could have employed 3,566,561 extra nurses, or...
* We could have built 45 new hospitals, or...
* We could have recruited 4,232,105 new police officers, or...
* We could have bought 5,468 new trains, or...
* Repaired 911,454,514 potholes, or....
* We could have secured 3,516,112 new border officers.
(all at time of writing)
We "could have" but the Tories wouldn't have spent the UK's £850 billion annual budget on those things anyway so it's a moot point.
However that £439 million a week loss sure puts the cost figures bandies about by the leave campaign into perspective. And that's without the other trading costs that Business Insider took into consideration.
Trouble ahead I'm telling you.