Postal wealth management interest is the purchase amount of wealth management products multiplied by the annualized rate of return of wealth management products multiplied by the term of wealth management products divided by 365. Postal Savings Bank launched wealth management products for 280 days, with an annualized rate of 4%. The income from purchasing100000 RMB wealth management products is 654.38+ 10000 RMB X4%? 280 ÷ 365 = 0.3064931510000 yuan =3068.49 yuan. 65438+100000, the first year yield is 4%, and the 280-day income of wealth management products is 3068.49 yuan.