IF Google, the internet search engine, had successfully floated on New York's Nasdaq exchange yesterday at the upper range of the initially mooted asking price, it would have been valued on an earnings multiple of 329. It was forced by weaker-than-hoped-for demand to slash the price of the share issue. But having floated at $85, the bottom of the range of its already-reduced estimates, it was still on a price-earnings multiple of 207.