In 2018, Popeye's began offering a chicken sandwich to compete with Chick Fil A. The initial price was $5.00 per sandwich. In 2018, they sold 1 million sandwichs. In 2019, they have raised the price to $6.5 per sandwich and expect to sell 3 million. Use the concepts of a shift in the demand curve versus a movement along the demand curve to explain why this increase in sales does not represent a violation of the law of demand.