Aunt Li’s Spring Festival Supermarket pays business tax at 4% on all income in September, and the total tax paid is 1,500 yuan. How much is Aunt Li's turnover in September?
李阿姨所开的新春超市9月份的全部收入都按4%缴纳营业税，共缴纳税款1500元．李阿姨9月份的营业额是多少元．
<gadget id="calculator">4 / 100</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">1_500 / (1/25)</gadget>
<output>37_500</output>

<result>37_500</result>