Pubs and restaurants hit by new coronavirus restrictions will be given extra cash to help get them through Christmas, Prime Minister Boris Johnson is set to announce as he tries to see off a growing Tory rebellion. The Prime Minister has decided the potential closure of tens of thousands of premises is an unacceptable price to pay for a new system that places 99 per cent of England under the toughest Tier 2 or 3 restrictions from Wednesday. A Government source said: "There are already grants of £2,000 and £3,000 for businesses in Tiers 2 and 3, but we recognise that we need to do more." The new tiers system, which has been described as a death knell for thousands of pubs and restaurants, requires all premises in Tier 3 to offer only takeaway service, while those in Tier 2 can only serve alcohol with "substantial meals" – restrictions which will apply to 99 per cent of the country. Mr Johnson will on Monday publish an analysis of the economic, social and health consequences of the tiers amid warnings from up to 100 Tory MPs that they cannot back the plans without knowing their effect. In a letter published on Sunday evening, Mr Johnson issued a direct appeal to the rebels in the backbench Covid Recovery Group (CRG), saying there was “every reason” to hope and believe “the worst is nearly behind us, so now more than ever is the time to demonstrate unity and resolve.” Between 70 and 100 Tory MPs are threatening to oppose the Government when the new tiers regime is put to a vote in Parliament on Tuesday, and Mr Johnson has had to up the stakes after promises of a review of the tiers in December and vote to end them in January failed to assuage them. It leaves the Prime Minister relying on Labour votes, and the opposition has previously demanded extra cash for businesses hit by the toughest coronavirus restrictions in order to support the new system.