agreed formula meaning in Chinese

一致同意的办法, 商定方案

In accordance with the agreed formula for calculating investment return for the fiscal reserves deposited with the exchange fund , the amount accruing to the general revenue is hk 25 . 7 billion , more than twice the amount of hk 12 . 1 billion budgeted for
根据存放在外汇基金的财政储备的议定计算投资回报的方法，应计的政府一般收入为257亿港元，是预算数字121亿港元的两倍有多。