Plus-size women's apparel chain Charming Shoppes Inc on Tuesday posted a 72 per cent leap in second quarter earnings on the back of soaring sales of summer fashions and improved profit margins. The Pennsylvania-based company, whose banners include Lane Bryant and Fashion Bug, said its net income in the 13 weeks to August 3 surged to $25.6 million, or 20 cents a share, from $14.9m, or 14 cents a share, in the year-ago period.