…In New York, the average price per square foot for a Manhattan condo is $1,381 or about 137,000 yen, according to appraiser Miller Samuel Inc. and brokerage Douglas Elliman Real Estate. Homes in the best parts of central London sell for about 2,000 pounds ($3,100) a foot, with addresses in Chelsea, Kensington and north of Hyde Park fetching about 4000 pounds, CBRE Group Inc said in a June report…