Let's only consider how that effects the top 1% and a rough estimate. Currently that's around 1.73M filers with an average income of 1.4M a year. Under the new tax rules the average 1% will save $40,000 over 480k (will obviously save more under 480k but not counting that). That totals out to be $692B in tax cuts over 10 years or in other words basically 70% of the tax cut deficit based on standard scoring and 138% based on dynamic scoring (obv not exact). So this could have been a revenue neutral tax cut even after a massive tax cut to everyone, just a slightly less of a tax cut to the top 1%.
In other words 70% of the tax plan deficit over the decade is coming from cuts from the top 1%. I would have preferred a different allocation that would have decreased their tax burdens but not by that much. Obviously this doesn't consider many smaller factors but it's a fairly accurate estimate.