白银跳水，沪银跌超10%，黄金跌破4800美元

Group 1 - The core viewpoint of the article highlights a significant decline in silver prices, with spot silver dropping nearly 3% to below $74 per ounce and New York silver futures experiencing a larger drop of 3.77% [1][3] - Shanghai silver futures also mirrored this decline, with the main contract falling over 10% [3] - Specific price data for Shanghai silver futures shows a drop of approximately 10.46% for contract 2605, with other contracts also experiencing similar declines ranging from 10.32% to 10.39% [4]