The turnover of the supermarket in October was 250,000 yuan, an increase of 50,000 yuan compared with September. What percentage increase?
超市十月份营业额是25万元，比九月份增加5万元，增加了百分之几？
<gadget id="calculator">25 - 5</gadget>
<output>20</output>

<gadget id="calculator">5 / 20</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>