Mr. Wang has a three-year certificate of deposit with a deposit amount of 30,000 yuan. If the annual interest rate is 54%, how much interest will Mr. Wang get when it matures?
王老师有一张定期三年的存单，存款额为30000元，如果年利率是54%，到期时，王老师可得利息多少元？
<gadget id="calculator">5.4 / 100</gadget>
<output>0.054</output>

<gadget id="calculator">30_000 * 0.054 * 3</gadget>
<output>4_860</output>

<result>4_860</result>