A second vote on whether to leave the European Union is wanted by half of Britons, according to the findings of a new opinion survey.

The poll, which was published in the Mail on December 3, found 50% of people supported another vote on the final terms of Britain’s exit deal. A third (34%) rejected another referendum and 16% said they did not know.

As reported by the Reuters news agency, this was the first major opinion poll since last week’s media reports that Britain is preparing to pay about €50bn to help to pave the way for talks on a future trade pact with the EU.

Also, 35% of those surveyed said they would be worse off financially after Brexit, while 14% said they would be better off.

The online poll, carried out by research firm Survation, interviewed 1,003 adults in Britain between 30 November and 1 December.

Mike Smithson, an election analyst who runs the www.politicalbetting.com website and a former Liberal Democrat politician, said on Twitter it was “the first time any pollster has recorded backing” for a second Brexit referendum.

Former British prime minister, Tony Blair, told the BBC on December 3 that Britain could change its mind about leaving the EU. “It’s reversible. It’s not done until it’s done,” he said.