The proposal would reduce taxes throughout the income distribution. It would cut taxes by an average of about $5,100, or about 7 percent of after-tax income. On average, households at all income levels would receive tax cuts, but the highest-income households would receive the largest cuts, both in dollars and as a percentage of income.

Annotation

Need to further investigate but it seems that under this plan that a family making 40k or 50k will go from paying 10% or 15% to paying zero taxes. So while a family making 250k might get the largest cut on taxes, that large cut is relative: lower and middle class families won't be paying taxes at all.  But prob not reading this right, think it's more complex.