Xiaoli deposits 1,600 yuan in the bank. If the annual interest rate is calculated at 2.25%, how much yuan will she get the principal and after-tax interest after one year?
小丽存入银行1600元，如果年利率按2.25%计算，一年到期后她可获得本金和税后利息一共多少元？
<gadget id="calculator">2.25 / 100</gadget>
<output>0.0225</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">1_600 * 0.0225 * 1 * (4/5)</gadget>
<output>28.8</output>

<gadget id="calculator">1_600 + 28.8</gadget>
<output>1_628.8</output>

<result>1_628.8</result>