Uncle Wang deposited 2,000 yuan in the bank on March 2, 2011. The deposit is fixed for 3 years, and the annual interest rate is 4.5%. How much after-tax interest can he get back when it expires?
王叔叔2011年3月2日到银行存了2000元，存定期3年，年利率是4.5%，到期时他可领回多少税后利息？
<gadget id="calculator">4.5 / 100</gadget>
<output>0.045</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">2_000 * 0.045 * 3 * (4/5)</gadget>
<output>216</output>

<result>216</result>