Professor Li deposits 2,000 yuan in the bank for three years, with an annual interest rate of 5.4% and interest tax of 5%. After the expiration, how much can Professor Li withdraw in total? How many percent has it increased from the principal?
李教授把2000元存入银行，整存整取三年，年利率5.4%，利息税5%．到期后，李教授一共能取出多少元？比本金增长了百分之几？
<gadget id="calculator">5.4 / 100</gadget>
<output>0.054</output>

<gadget id="calculator">2_000 * 0.054 * 3</gadget>
<output>324</output>

<gadget id="calculator">324 / 2_000</gadget>
<output>81/500 = around 0.162</output>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">(81/500) * 1</gadget>
<output>81/500 = around 0.162</output>

<result>81/500 = around 0.162</result>