Xiaoliu is a grassroots employee in a public institution. Recently, when he returned home, he found that the staff of the property management company were replacing the electricity meter with their staff. He thought it was a good thing, but little did he know that the prepaid electricity meter would cost 500 yuan, which is only one sixth of Xiaoliu's salary! Xiaoliu firmly stated that he would not replace it, but couldn't resist the explanation from the property management company personnel: This type of electric meter has always been used in commercial areas, office buildings, and other places. Recently, your property community has negotiated with the power company to replace all of them with this new prepaid electric meter. Although the price is as high as 500, our products are definitely worth it. Compared with those of other companies on the market, our products are safer, more reassuring, and more technologically advanced!