The premium is to be calculated in this way.
保险费是这样计算的。
The total premium is 800 U.S.dollars.
保险费总共是800美圆。
The cover paid for will vary according to the type of goods and the circumstances.
保险费用按照货物类别的具体情况会有所不同。
The rates quoted by us are very moderate.Of course，the premium varies with the range of insurance.
我们所收取的费率是很有限的，当然，保险费用要根据投保范围的大小而有所不同。
According to co-insurance clauses，the insured person must pay usually 20 percent of the total expenses covered.
根据共同保险条款，保险人通常必须付全部费用的百分之二十。