BRITISH supermarket group Somerfield yesterday confirmed it had cut the flotation value of the company to £435 million sterling from £480 million - the second time it has been forced to lower its sights in seven days. The company said the shares would be sold at 145p compared with the price of 160p unveiled on Friday last week and 45p below the original upper target price of 190p, which would have valued the group at £570 million.