Blyth Inc., the largest U.S. candle maker, said its quarterly profit fell 40%, in-line with its lowered expectations, as soft consumer spending restrained retailers’ orders.Blyth, Greenwich, CT, said it earned $11.2 million in its second quarter ended July 31, compared with $18.8 million in the year-earlier period. On July 22, the company had warned of weaker-than-expected earnings due to the sluggish economy and cautious consumer buying.“Significant retailer caution continued in the...