Price Increased

Following Jin Ronghang into the small store, Duan Yixin looked around and found that although the quantity was not much, this store had almost everything she needed. While Duan Yixin was looking around, Chi Xinru was surprised when she saw the price tags on grains and salt. 

She pointed to the price tag and asked, "Grandpa Jin, why has the price increased so much? Wasn't it three copper coins for a catty of coarse grains before? Why has it become seven copper coins?"

Jin Ronghang sat on his old bamboo rocking chair, picked up a straw fan, fanned himself, and said, "It's all the bandits' fault. Because they rob merchants and block roads, there are not many merchants willing to come here to do business. If there isn't enough supply, prices will rise due to high demand."