On the other side will be the real opposition: the pound. As the likelihood of Britain’s departure from the single market grows—a corollary of its uncompromising stance on immigration—the country’s economic prospects will decline. Sterling will struggle to find a floor, inflation will start to hurt, growth will fall below that of the euro zone and investment will slow.
Find a floor? does it mean it will have difficulties landing on the ground(stabilize) being unstable? Or because of the inflation it will float like a balloon? I don't know what sense it is used.
the source: http://www.theworldin.com/article/12586/wait-fall