The City gives an estimated £1.1billion a year in corporate donations to good causes, yet 80 per cent said it should give more. More than a third of influentials said City workers should give up part of their bonuses to charity and more than one in eight said this should be at least 10 per cent, raising £700 million this year. There was also support for US-style programmes to involve well-paid workers in helping the less well-off. Half those questioned said City workers should take time off to mentor teenagers from disadvantaged backgrounds. Lord Mayor David Lewis, a main figure at the City of London Corporation, said: "Giving to help others is a vital part of what it means to be a citizen and I, and many others in the City, have always contributed.