Wang Ming deposits 800 yuan of lucky money in the bank for three years, with an annual interest rate of 5.40%. After the maturity, he plans to donate the interest to poor areas. How much can he donate?
王明把压岁钱800元存入银行，定期三年，年利率是5.40%，到期后准备将利息捐赠给贫困地区，他可以捐出多少元．
<gadget id="calculator">5.4 / 100</gadget>
<output>0.054</output>

<gadget id="calculator">800 * 3 * 0.054</gadget>
<output>129.6</output>

<result>129.6</result>