A little math here:
$530 million in taxes / $500,000 baseline = 1,060 people paying...???
Even if you double the $500,000 base line to $1,000,000 in income that is $250,000 more in taxes per person...
Someone doesn't do math very well or the "rich" in NYC are about the get raped...
Uh, sorry but your math makes no sense for computing the number of people who would pay. It is people who make over $500K per year, not that anyone would actually pay $500K.
That being said, I oppose the idea of such a tax.