According to CoinMeta, as monitored by the data center, as of August 6th, among the 22 mainstream BTC mining machines being tracked, approximately 22.7% were experiencing negative net profits for that day. The data shows that the shutdown price for the most energy-efficient models is around $46,787. This means that if the market price of BTC falls below this level, even the most energy-efficient models will enter a critical zone where they may need to shut down, under current electricity prices and other calculation conditions.