Now the annual interest rate of the 3-year fixed deposit is 2.25%, and 20% interest tax will be paid when it matures. Dad deposits 2,000 yuan in the bank for a period of 3 years. How much is the total principal and interest after the maturity?
现在3年定期存款的年利率是2.25%，到期还要缴纳20%的利息税．爸爸把2000元存入银行，定期3年，到期后实得本金和利息共是多少元．
<gadget id="calculator">2.25 / 100</gadget>
<output>0.0225</output>

<gadget id="calculator">2_000 * 0.0225 * 3</gadget>
<output>135</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">135 * (4/5)</gadget>
<output>108</output>

<gadget id="calculator">108 + 2_000</gadget>
<output>2_108</output>

<result>2_108</result>