The Director General of the British Retail Consortium, Stephen Robertson has said that the Olympic period was "an unknown."
He added that "shoppers were more interested in watching the magnificent Olympics rather than getting out on to the high-street."
Mr Robertson also said that there was hope for Christmas as retailers prepare for the festive season; "let's cross our fingers that the good feelings we got out of the Olympics and the Paralympics carry on in to the fourth quarter of this year."
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Sir Bruce Forsyth, Sir Cliff Richard and the Prime Minister have been among those paying tribute to Cilla Black following news of her death.
TV favourite Cilla Black, who has died aged 72, gave viewers a "lorra, lorra laughs" during her long career.
Some rain in the north. Very warm sunshine in the south