Lawyer Zhang solved an economic dispute case for a certain company and received 50,000 yuan in legal fees, but he needs to pay personal income tax at a rate of 25%. How much personal income tax should he pay?
张律师为某公司解决了一桩经济纠纷案，获得律师费5万元，但他需按25%的税率缴纳个人所得税，他应缴个人所得税多少元？
<gadget id="calculator">5 * 10_000</gadget>
<output>50_000</output>

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">50_000 * (1/4)</gadget>
<output>12_500</output>

<result>12_500</result>