$0.00 + 10% of amount over $0.00
$870 + 15% of the excess over $8,700
$4,867.50 + 25% of amount over $35,350
$13,867.50 + 28% of amount over $71,350
$24,332.50 + 33% of amount over $108,725
$52,531 + 35% of amount over $194,175