Question: The latest trading day's price change in dollars of AT&T (US stocks).（based on the latest closing price and the previous closing price）
Date: 2025/8/14
Answer (translation): Required Content: The latest price change in dollars of AT&T
Accuracy Requirements: Only rounding errors are allowed
Ground-truth data: T___N: RT_TIME: 195930
RT_DATE: 20250813
RT_CHG: -0.08