The standard ticket price for Qingdao Fantawild Dreamland is 210 yuan. Xiaohong’s family bought 3 tickets and paid 700 yuan. How much should I get back?
青岛方特梦幻王国的基准票价是210元，小红一家购买了3张票，付了700元，应找回多少钱？
<result>700</result>