Upscale department store group Selfridges on Thursday posted an 8.2 per cent jump in full year pre-tax profit to £40.7 million from the year-ago period on the back of a solid rise in turnover. The retailer said turnover in the 12 months to January climbed 10.6 per cent year-on-year to £444.9m and added same-store sales at its flagship store in London's Oxford Street were flat in the first six weeks of the new fiscal year although total sales rose eight per cent.