Profits at Minneapolis-based General Mills have soared by 51 percent in the first quarter, it was announced today. For the quarter ending August 30, General Mills posted profits of $420 million, up from $278 million a year before. Sales at its US retail business rose 5.8 percent and profit by 21 percent. The higher than expected profits were helped by strong sales of breakfast cereals in the US and a decline in wheat prices.