In addition I learned about economy. In economics I learned about the law of demand, the law of supply, the 5 shiters of demand/supply etc… This is what I’ve been learning about demand and supply.
As the price of fabrics increased the price of garments also increase because fabrics are one of the resources to make garment. It causes the garment factory to supply less garment. This is one of the 5 shifters of supply called the price of resource. As you see the new equilibrium point shows when the supply is less the price of garment increased the quantity sold of that garment decreased.