This means a larger percentage tax reduction for families with smaller taxable incomes, and specifically helps families in the middle income levels.

对于税前收入较低的家庭，这意味着更高的减税比率，这对中等收入水平的家庭帮助尤大。

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Economists projected that the federal government would collect a far lower percentage of total tax owed by delinquents than did state governments implementing similar programs.

经济学家预计，联邦政府征收的拖欠税款占总税款的比例，将远低于实施类似计划的州政府。

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Everyone with an income should pay income tax equal to a modest percentage of his income.

任何人的所得都应当支付一笔与之相称的适当百分比的所得税。

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So, those who make less income pay a lower percentage of tax,

所以收入少的人税率低，

扶贫政策 - SpeakingMax英语口语达人

But it would be better if I learned my marginal tax rate or MTR the percentage tax that I would pay on an additional dollar of income.

FORBES: Marginal Tax Rates Matter More Than Average Tax Rates

This is on top of the current 15% payroll tax, and in addition to a new 2.5-percentage point tax on individuals who don't buy health insurance.

WSJ: A Reckless Congress: Health-care bill to impose new taxes, welfare state

He has opposed the idea of a flat tax, which means whatever your income, you pay the same percentage of tax, although he does support a "flatter tax".

BBC: Is redistribution a foreign idea to the US?