Grandpa donated to the Hope Project. He deposited 50,000 yuan in the bank for two years, with an annual interest rate of 4.6%. After the expiration, I plan to donate the interest to the Hope Project. How much does Grandpa plan to donate?
爷爷给希望工程捐款，他将50000元存入银行，定期两年，年利率4.6%．到期后计划把利息捐给希望工程，爷爷计划捐款多少元？
<gadget id="calculator">4.6 / 100</gadget>
<output>0.046</output>

<gadget id="calculator">50_000 * 0.046 * 2</gadget>
<output>4_600</output>

<result>4_600</result>