According to Binance spot data, the rolling 24-hour snapshot for BTCUSDT sampled at 16:05 Beijing time on October 31 showed the latest price of $BTC at 77,300 USDT, down 1.078% from the opening price of that statistical window. The highest price during the window was 78,241.30 USDT, and the lowest was 76,325.98 USDT.

This reflects price changes for a single Binance spot trading pair within a specific rolling 24-hour window. It is not the change over a calendar day, nor does it represent the entire market. These data alone are insufficient to determine the reason for the decline or what direction prices may take next.