Complex sentence: However, in 2016 sales plummeted after the controversial decision to change the recipe from the original Dairy Milk chocolate to a cheaper substitute, with reports of a loss of more than £6m in sales.
Split into simpler sentences: However, in 2016 sales plummeted after the controversial decision to change the recipe from the original Dairy Milk chocolate to a cheaper substitute. With reports of a loss of more than £6m in sales.