In a certain city, 348 consumers complained about product quality problems this year, an increase of 45% over last year. How many consumers complained about product quality problems last year?
某市今年投诉商品质量问题的消费者有348人次，比去年增加了45%．去年投诉商品质量问题的消费者有多少人次？
<gadget id="calculator">45 / 100</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">1 + (9/20)</gadget>
<output>29/20 = around 1.45</output>

<gadget id="calculator">348 / (29/20)</gadget>
<output>240</output>

<result>240</result>