Leaving EU would hit the UK Economy, David Cameron warned.

The poorest and most vulnerable people in the UK would be hit hardest by the economic consequences of leaving the EU, David Cameron has warned.Leaving the union would see prices rise and threaten jobs, the prime minister said, in a move seen as an attempt to reach out to Labour voters.
Writing in the Daily Mirror, he said leaving would be “a national error”.
Meanwhile, more than 300 business figures and entrepreneurs have signed a letter in support of an EU exit.