The output value of a factory in 2005 was 17.5 million yuan, an increase of 25% from the original plan. How much was the original planned output value?
某工厂2005年产值是1750万元，比原计划增加25%，原计划产值是多少万元？
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">1_750 / (5/4)</gadget>
<output>1_400</output>

<result>1_400</result>