If you buy Feng, as you said, it is annualized rate of return, that is, the annual interest rate is 4.7% instead of 142 days.
The income is [(200000 * 4.7%)/365] *142 = 3656.986 yuan, and the daily income is 25.7534 yuan.
If you can bear high-risk and high-return investment behavior, you can choose stock market, fund or futures.
If you want to be safe in ABC's short-term financial management or gold trading, it is appropriate.
In addition, it is also good to suggest that 20-30% of disposable income is used to buy savings or guaranteed insurance products every year, at least to avoid worries.