large supermarket pays tax at 5% of turnover in the fourth quarter of 2012. The after-tax balance is 570,000 yuan. How much is the tax paid by the supermarket in the fourth quarter?
某大型超市2012年第四季度按营业额的5%纳税．税后余额为57万元，超市第四季度纳税多少万元？
<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">57 / (19/20)</gadget>
<output>60</output>

<gadget id="calculator">60 - 57</gadget>
<output>3</output>

<result>3</result>