British supermarket giant Tesco has reported the worst annual pre-tax loss in its history of £6.4bn ($9.5bn).
Tesco Chief Executive Dave Lewis says it has been a 'very difficult year'.
The loss is worse than expected and is partly due to Tesco writing down the property value of its physical stores.
But the supermarket insists efforts to win back customers are beginning to work - with transaction numbers beginning to rise for the first time since 2012.
Richard Troue of stockbroker Hargreaves Lansdown says Tesco has a series of challenges.
IN: "A lot...
OUT: ...adapt."
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Brand expert Rita Clifton says there are reasons for optimism.
IN: "They're squeezed...
OUT: ...big job."
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Brand expert Rita Clifton says Tesco needs to reinvigorate its relationship with its customers.
IN: "Doing things...
OUT: ...first place."
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