The uncle deposits 8,000 yuan in the bank for two years, the annual interest rate is 4.7%, and the interest tax is 20%.
叔叔将8000元钱存入银行两年，年利率为4.7%，利息税20%，到期时可得本息共多少元．
<gadget id="calculator">4.7 / 100</gadget>
<output>0.047</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">8_000 * 0.047 * 2 * (4/5)</gadget>
<output>601.6</output>

<gadget id="calculator">8_000 + 601.6</gadget>
<output>8_601.6</output>

<result>8_601.6</result>