约定利息 meaning in English

contract interest
conventional interest

The amount of gain is limited to the pre - determined interest even if the investor s view of the market movement of the underlying stock is correct
即使投资者能准确预测挂?股票之市场走势，所获得之利润亦只限约定利息。
If we fail to repay the loan facility to you when due , we undertake to pay ( i ) an interest ( in addition to the agree interest , if any ) up to 2 % per annum , at the sole discretion of the bank , and ( ii ) a penalty equal to nt300 or such other lower amount on a daily basis
若本公司逾期偿还贵行贷款,本公司同意贵行得在原定利息之外(仅适用予以有约定利息之情形) ,自行决定加收最高达年利率2 %之逾期利率,贵行并得按日向本公司收取相当于获利低于新台币三百元整之违约金