Blockbuster Inc. is planning to close as many as 40% of its stores over the next two years as the company continues to struggle against new competitors.

The Dallas-based movie-rental company had previously planned to close 1,000 stores, but on Tuesday it raised that number to as many as 1,560 of its 3,750 retail outlets. Of those, up to 300 may be converted to outlets, and up to 300 are undergoing lease mitigation or termination efforts. It said the move would help boost profitability and save $26 million in working capital.

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