怎么计算同期下降率

简介：Don't worry, you haven't noticed that the vitality of heaven and earth is growing every day. I believe that when the vitality of heaven and earth on the earth is strong enough, which mythical relics will appear one after another, the most important thing at the moment is to improve the strength, otherwise it will not even be possible when the time comes. There is no qualification to compete. Qin Fen narrowed his eyes and said.