The chairman said at the board meeting: "Gentlemen, according to the actual income of the branch operation, the dividend we have to pay is 6% of the total shares, but we have to pay 7.5% of the dividends for the preferred shares of 4 million yuan. So we have Common stock can only pay 5% dividend." Question: How much is the price of common stock?
董事长在董事会上说："先生们，根据分路营运的实际收益，我们要支付的股息是全部股份的6%，但是有400万元的优先股我们必须支付7.5%的股息．所以我们对普通股只能支付5%的股息了．"问：普通股的价钱是多少万元？
<result>600</result>