Complex sentence: The Grand Arcade is a covered shopping centre located in Wigan town centre, built in 2007 and consisting of more than 40 retail establishments, it has an annual footfall of 6.3 million people.
Split into simpler sentences: The Grand Arcade is a covered shopping centre located in Wigan town centre. Built in 2007, it consists of more than 40 retailers gaining an annual footfall of 6.3 million people.