Which manufacturer’s sales dropped the most in percentage in June?

A slump in vehicle sales by the three big US car manufacturers has renewed worries about the American economy. General Motors posted an 18% drop in sales in June, Ford unveiled a 29% slump, Chrysler’s sales were down by 36%. Mark Gregory reports.
    The combination of record fuel prices and an economy close to recession has led to a slump in sales. On current trends, fewer than 14 million cars and light trucks will be sold in the US this year, the market’s worst performance in 15 years. Shares in General Motors, America’s biggest car maker, have fallen to a level last seen in the 1950s.