The agricultural investment in a certain place this year has increased by 3 million yuan compared with last year, an increase of 20%. How much was the agricultural investment in this area last year?
今年某地的农业投入比去年增加300万元，增长了20%．去年该地的农业投入是多少万元？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">300 / (1/5)</gadget>
<output>1_500</output>

<result>1_500</result>