Question: 指南针最近一个交易日涨跌幅
Date: 2025/8/14
Answer: 必答点：指南针的最新涨跌幅
精度要求：仅允许四舍五入误差
Ground-truth data: 300803___SZ: RT_TIME: 153015
RT_PCT_CHG: -0.044700000000000004
RT_DATE: 20250814