Fees are charged at a flat rate, rather than on a percentage basis.

费用按固定的费率收取，不是按百分比。

《柯林斯英汉双解大词典》

On a percentage basis, we think it's going to be the fastest-growing segment in semiconductors this year.

根据百分比来计算，DRAM 存储产品将成为今年半导体行业增长最快的部门。

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If there are several defendants in a case, the jury will be asked to apportion causation among the defendants on a percentage basis.

如果一个案件中有多名被告，陪审团将被要求在被告之间对造成伤害的原因进行比例分配。

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Platinum and palladium prices are up on a percentage basis this morning more than gold and silver.

FORBES: Budget Debacle, Chinese Demand, Drive Gold To $1471; Next Stop, $1500

The good news is that marketing expenses likely will drop on a percentage basis as parents chat up your center at dinner parties.

FORBES: Magazine Article

Because of these trends, price changes at the farm level in the U.S. have less impact on a percentage basis than ever before.

FORBES: Foods With The Biggest Price Increases