Do me a favor 15 yuan beef skewers, there are 30 * * *, how much is a string?
The texture of buffalo beef is coarse, it has a faint purple luster under the light, and it is not easy to boil. The cooked buffalo beef is loose, and the soup has a thick layer of oil. At present, the effect of beef replacing pork in China is obvious, and the quality of beef and mutton is better than that of pork. Whenever it comes to winter, the consumption of beef and mutton is higher and the price rises faster. In 2020, the price of beef will be different due to supply and demand, origin, quality and other factors. Now, the price of beef in Shanghe County, Jinan City, Shandong Province is 2 1 yuan a catty, the price of beef in Dianjun District, Yichang City, Hubei Province is 20 yuan a catty, the price of beef in Binhai New Area, Tianjin City is 23.5 yuan a catty, the price of beef in Linquan County, Fuyang City, Anhui Province is 27.8 yuan a catty, and the price of beef in Jinxiang County, Shandong Province is 26.8 yuan a catty. The price of beef in Lingcheng District, Dezhou City, Shandong Province is 27 yuan, the price of beef in Dongli District, Tianjin City is 22 yuan, the price of beef in Yangxin County, Binzhou City, Shandong Province is 24 yuan, the price of beef in Nankai District, Tianjin City is 25.5 yuan, the price of beef in Xindu District, Chengdu, Sichuan Province is 27 yuan, and the price of beef in Changqing District, Jinan City, Shandong Province is 20 yuan. How much is the above price from the wholesale price of beef?