$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
$17,442.50 + 28% of amount over $85,650
$43,482.50 + 33% of amount over $178,650
$112,683.50 + 35% of amount over $388,350