The annual percentage change in quantity and price of the sales of goods sold in the following stores in 2021 relative to 2020 are indicated in the following table: Types of stores Percentage change in price Percentage change in from the previous year quantity from the previous year Clothing and Footwear +3.5% +17.2% Department Stores +2.0% -5.2% Medicines and Cosmetics -5.9% +9.4% Note: 1. Values of goods used in the provision of services are not included. 2. Tourists buying in stores are included. Analyse the change in price and quantity for the above type of stores with the 4-step approach of demand-supply analysis