The total output value of a certain factory last year was 23 million yuan, an increase of 15% over the previous year. How much was the total output value of this factory in the previous year?
某工厂去年总产值2300万元，比前年增加15%，这个工厂前年的总产值是多少万元？
<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>