A supermarket in Xingyang had a total sales of 23 million yuan last year, an increase of 15% over the previous year. How much was the sales of this supermarket in the previous year?
荥阳某超市去年总销售额2300万元，比前年增加15%，这个超市前年的销售额是多少万元？
<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 + (3/20)</gadget>
<output>23/20 = around 1.15</output>

<gadget id="calculator">2_300 / (23/20)</gadget>
<output>2_000</output>

<result>2_000</result>