Second, customers want to check their margin ratio. Some futures companies, such as China Research Futures, publish in the company's official website, and update the trading margin ratio every day. There are still some futures companies that have not been announced in official website. You can consult the customer service of futures companies or their brokers. Another method is to check it in the trading software. Some systems display the ratio, and others can calculate the ratio by calculating the margin occupied by the warehouse opener. The formula is margin = opening point * contract multiplier * margin ratio.