Attract more customers, perhaps by changing pricing strategy and/or improving its promotional strategies.
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Encourage customers to pay by cash, thereby improving the firm's cash inflows.
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Use any available has to pay off short-term debts, thereby reducing the interest (debt) burden on the business in the long run.
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Negotiate with supplies for an extended trade credit period (e.g. from 30 days to 40 days), thereby improving its own liquidity position.