Glasgow-based fashion firm Quiz has seen shares tumble after warning summer trading has remained "challenging" as fewer people visited its shops.

The group's stock dropped as much as 14% after it said revenues in its financial year so far were "broadly" flat on a year earlier, but that is after stripping out sales lost from unprofitable business streams which have now been ended.

Peter Cowgill, chairman of Quiz, said: "The challenging trading conditions reported at the time of the group's announcement on June 11 2019 have persisted over the summer months.

"Consistent with the widely reported conditions on the UK high street, the business has experienced a reduction in store footfall during the period compared to the previous year when the group experienced particularly strong demand."

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Quiz, which is holding its annual shareholder meeting on Wednesday, said trading conditions are set to remain difficult, but put faith in its online focus to help return it to profit growth.

It added that online sales had continued to rise since its annual results on June 11.

Quiz - which had warned over profits in January and March this year - confirmed in June that full-year profits were almost entirely wiped out - crashing 97% to £0.2 million.

The firm blamed the downturn in profitability on the decline in high street footfall and weakened consumer confidence amid political uncertainty.

But Quiz reported revenue growth over the year across all channels, including a 32% jump in online sales to £41 million.

It is leading a turnaround plan to focus further on online sales, while it has also been ending some third-party online contracts, reducing its exposure to department stores and actively managing its store estate as leases come up for renewal.

Royal Bank of Scotland has warned over a hit of up to £900 million for payment protection insurance after a last-minute surge in claims ahead of the August deadline.

The part-nationalised bank said the number of claims last month was "significantly higher than expected", with a spike in the final days before the August 29 deadline.

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It said it now expects to take a charge of between £600 million and £900 million for payment protection insurance (PPI) in its third quarter results.

This comes on top of the £5.3 billion in provisions already set aside by the bank.

The industry has seen a rush in PPI mis-selling claims this year before the deadline, with a pick up in the final few months and a flurry in the final days.

RBS's PPI charge looks set to dent its third quarter figures after a robust first half for the lender, which saw it deliver a £1.7 billion special dividend payout for shareholders, offering a surprise windfall for the taxpayer.

Meanwhile, operating pre-tax profits outstripped forecasts, rising 48% to £2.7 billion.

Halfords has warned that summer sales were weaker than expected after the bikes and car maintenance chain was struck by poor weather and weaker consumer confidence.

The retailer added that it expects "political and economic uncertainty" to impact customers making bigger purchases over the rest of the year.

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Halfords saw like-for-like group revenues slump by 3.2% for the 20-week period to August 16 after it was weighed down by weak motoring sales during the period.

The company also warned investors that profits would be at the lower end of market expectations, pulling down pre-tax profit forecasts to a range of £50-£55 million after previously stating a £50-£59 million range.

However, the company said it is has seen "encouraging signs of progress" after introducing a new strategy last year.

Halfords reported growth in its services, online and business-to-business arms, but this was more than offset by heavy declines elsewhere in the business.

The company's core retail business saw like-for-like sales fall 3.9% after it was weighed down by a 5.9% dive in motoring sales.

Retail cycling sales declined "in line with expectations", falling 1.1%, as it was impacted by worse weather conditions than in the summer of 2018.