Master Li won a prize of 4,000 yuan for a scientific and technological invention. According to regulations, the part exceeding 800 yuan should pay 14% personal income tax. How much tax should Master Li pay?
李师傅的一项科技发明获奖金4000元，按规定，超出800元的部分应缴纳14%的个人所得税，李师傅应交税多少元．
<gadget id="calculator">4_000 - 800</gadget>
<output>3_200</output>

<gadget id="calculator">14 / 100</gadget>
<output>7/50 = around 0.14</output>

<gadget id="calculator">3_200 * (7/50)</gadget>
<output>448</output>

<result>448</result>