Odaily News This week, Bitcoin difficulty dropped 5% to 79.5 T, the largest drop since the difficulty briefly dropped below 80 T in March. f2fool analysis believes that only when the Bitcoin price is at or above $54,000, ASIC miners with a unit power of 26 W/T or less can be profitable, with an estimated profit of $0.07 per kilowatt-hour. It should be noted that electricity prices vary by region.