gross income

基本解释

He reckons his firm pays 70% of its gross income in various taxes.
他预测他的公司总收入的70%都用于缴纳各种各样的税款。
“high burden” health costs, which the study defined as more than 10 percent of their gross income.
“重压”健康支出超过总收入10%。（我翻得也不顺）这里，而低收入没有达到10%。）
Oil, gas, coal and timber companies, by contrast, all have to pay substantial royalties, of up to 12.5% of gross income, when they extract from federal lands.
相比之下，汽油，天然气，煤炭和木材公司在从联邦土地上进行开发工作时，都需要支付高达总收入的12.5%的特许使用费。

"What we are going to do is redo his calculations under the make a home affordable plan, of 31 percent of his gross income and see whether that pans out."
But this is no reason for complacency. Our figures for 2009 and 2010 will decide whether Europe meets its target of official development of 0.56 percent of gross national income by 2010."

To help your parent decide, the first step is taking a look at their gross income.
FORBES: Your Aging Parents And Tax Season: A Getting-Started Guide
The tax rate could very well be a flat tax system of say 20% gross income.
FORBES: Guest Post: Tax Reform