Textile maintenance firm Berendsen said that currency movements were to blame for a 1% fall in reported revenues in the first half, but that underlying trading was was "in line with management's expectations".For the first five months of 2014, Berendsen said that interest costs were lower due to strong cash flow and reported pre-tax profit was ahead of last year.The group, which provides laundry services for hospitals and hotels, workwear hire, floor protection mats and washroom products, reported that underlying sales at constant exchange rates grew 3% during the first half.In its core growth businesses, underlying revenues also increased by 3% over the prior year, while operating margins improved. Berendsen said: "Whilst our reported results will be influenced by the impact of currency translation, on an underlying basis, we have made good progress for the first half of the year in line with management's expectations, and the board continues to expect to achieve further good progress for the year as a whole."BC