国家统计局：9月70个大中城市中各线城市商品住宅销售价格环比下降，一线城市二手住宅销售价格环比下降1.0%

Group 1 - In September, the sales prices of new residential properties in first-tier cities decreased by 0.3% month-on-month, with the decline expanding by 0.2 percentage points compared to the previous month [1] - Beijing and Shanghai saw price increases of 0.2% and 0.3% respectively, while Guangzhou and Shenzhen experienced declines of 0.6% and 1.0% [1] - The sales prices of new residential properties in second-tier cities fell by 0.4%, with the decline expanding by 0.1 percentage points [1] Group 2 - In September, the sales prices of second-hand residential properties in first-tier cities decreased by 1.0%, consistent with the previous month [1] - The price declines in Beijing, Shanghai, Guangzhou, and Shenzhen were 0.9%, 1.0%, 0.8%, and 1.0% respectively [1] - Second and third-tier cities saw second-hand residential property prices decrease by 0.7% and 0.6% respectively, with both declines expanding by 0.1 percentage points [1]