Xiaohua deposits RMB 5,000 in the bank for three years, with an annual interest rate of 2.89%. After the due date, 5% interest tax will be deducted, and he will donate the withdrawn interest to the mountain area. How much did Xiaohua donate?
小华在银行存入5000元人民币，定期三年，年利率是2.89%．到期后，扣除5%的利息税，他把取出的利息捐给了山区，小华捐了多少元？
<gadget id="calculator">2.89 / 100</gadget>
<output>0.0289</output>

<gadget id="calculator">5_000 * 0.0289 * 3</gadget>
<output>433.5</output>

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">433.5 * (1/20)</gadget>
<output>21.675</output>

<gadget id="calculator">433.5 - 21.675</gadget>
<output>411.825</output>

<result>411.825</result>