Grocery retailer Colruyt posted a revenue increase of 7.9% for its first half, from E3.29bn (£2.79bn) to E3.55bn (£3bn). For the period ended September 30, gross profit jumped 9.1% to E900.4m (£763m) from E825.2m (£699.3m), which corresponds to a gross profit margin of 25.34% compared with 25.06% last year.