Li Qiang deposits 8,000 yuan in the bank for two years, with an annual interest rate of 2.5%. How much interest can he get after maturity?
李强将8000元存入银行，定期两年，年利率是2.5%，到期后可得利息多少元．
<gadget id="calculator">2.5 / 100</gadget>
<output>0.025</output>

<gadget id="calculator">8_000 * 0.025 * 2</gadget>
<output>400</output>

<result>400</result>