Seven-day annualized income refers to the data obtained after the average income of the past seven days is annualized. At present, most of the money funds show an annualized income of seven days. If the seven-day annualized rate of return of a wealth management product is 2% and the principal is 10000 yuan, it can be calculated that: 10000*2%*7/365=3.8 yuan, 3.8/7=0.54 yuan, and it can be concluded that the seven-day annualized rate of return of 2% is 0.