According to Cai Xi's survey. Com, the daily income of 50,000 yuan with change is 3.44 yuan. The income of WeChat change pass is calculated according to the seven-day annualized rate of return. Seven-day annualization refers to the data obtained after the annualized average income of the fund in the past seven days. At present, both money funds and net worth financial management calculate the seven-day annualized rate of return. The calculation formula is: 7-day annualized rate = principal * interest rate *7/365. Assuming that the seven-day annualized rate of return of WeChat Bitcom is 2.54% and the investor's principal is 50,000 yuan, it can be calculated that the seven-day annualized rate of return of WeChat Bitcom is 50,000 yuan *2.54%*7/365=24. 13 yuan, and the daily rate of return is 24. 13/7 3.44 yuan. The seven-day annualized rate of return changes according to market conditions, so the daily income will be different.