What's the interest rate for the savings account?
储蓄存款的利率是多少?

Interest is calculated at the rate of 0.8% per annum at present.
目前每年的利率是按0.8%计算的。

You can earn a little interest on your money.
你能从存款中获得一点利息。

The account carries a low interest.
该户头利息很低。