Dasheng bought 5,000 yuan treasury bonds in April 2007, fixed for three years, with an annual interest rate of 3.66%. After the maturity, he donated the interest to the children affected by the "Yushu Earthquake".
大生在2007年4月买了5000元国库券，定期三年，年利率为3.66%，到期后，他把利息捐给"玉树地震"中是受灾儿童，大生可以捐多少元？
<gadget id="calculator">3.66 / 100</gadget>
<output>0.0366</output>

<gadget id="calculator">5_000 * 0.0366 * 3</gadget>
<output>549</output>

<result>549</result>