Xiao Ming's uncle deposits 5,000 yuan in the bank, and deposits and withdraws for two years. The annual interest rate is 4.50%, and the interest tax is 5%. After two years, how much profit will Xiao Ming's uncle make.
小明的叔叔把5000元存入银行，整存整取两年，年利率是4.50%，利息税是5%，两年后，小明的叔叔可获利多少元．
<gadget id="calculator">4.5 / 100</gadget>
<output>0.045</output>

<gadget id="calculator">5_000 * 0.045 * 2</gadget>
<output>450</output>

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">1 - (1/20)</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">450 * (19/20)</gadget>
<output>855/2 = around 427.5</output>

<result>855/2 = around 427.5</result>